| ActivationCode |
24-character Double-Take Availability activation code
Values: Unique value for each customer
Default: N/A
GUI Setting: Server Properties, Licensing tab, Activation Code
|
| AdapterFlags |
Specifies the adapter to use when establishing a connection. This option should not be changed.
Values: 2 Encryption, 4 Network Data Representation
Default: 4
GUI Setting: None
|
|
AddOnCodes
|
24-character activation code for specific add-on components
Values: Unique value for each customer
Default: N/A
GUI Setting: Server Properties, Licensing tab, Additional Codes
|
| Advertisement |
Indicates if the server uses Active Directory to advertise itself so that the Management Console can populate the server tree
Values: 0 Do not use Active Directory advertisement, 8 Use Active Directory advertisement
Default: 8
GUI Setting: Server Properties, Setup tab, Advertise service with Active Directory
If Active Directory advertisement is enabled, there is a 200 byte impact on the Active Directory service for each server that registers. The Double-Take service registers with Active Directory at startup and unregisters at shutdown.
|
| AllFailover |
Specifies which IP addresses to failover
Values: 0 Failover only monitored IP addresses, 1 Failover all IP addresses
Default: 1
GUI Setting: Failover Control Center, Monitor Settings, Items to Failover, IP Address(es)
|
| AllMustFail |
Specifies whether or not all IP addresses must fail for failover to take place
Values: 0 any IP address can fail, 1 All IP addresses must fail
Default: 1
GUI Setting: Failover Control Center, Monitor Settings, Failover Trigger, All Monitored IP Addresses Fail
|
| ArchiveExclusionDirectories |
Specifies directories that, if included in the replication set, will be excluded from the archiving process
Values: Any valid path
Default: DTArchiveBin RECYCLER
GUI Setting: None
|
| ArchiveExclusionFiles |
Specifies files that, if included in the replication set, will be excluded from the archiving process. Wildcard characters are not allowed.
Values: any valid file name
Default: autoexec.bat config.sys
GUI Setting: None
|
| ArchiveLoopAttempts |
The number of times a file archive is attempted
Values: any integer
Default: 10
GUI Setting: None
|
| ArchiveLoopDelay |
The length of time, in milliseconds, to delay between attempts to archive a file
Values: any integer
Default: 1000
GUI Setting: None
|
| ArchivePreviewFileName |
Specifies the base file name used for the archive preview report. The replication set will be prepended to the file name.
Values: any valid file name
Default: archivepreview.txt
GUI Setting: Server Properties. Logging tab, Archive Preview, Filename
|
| ArchivePreviewMaxFileSize |
Specifies the maximum size, in bytes, of the archive preview report. Once the file reaches this size, no additional data is written to the file.
Values: any valid integer
Default: 10485760
GUI Setting: Server Properties. Logging tab, Archive Preview, Maximum Length
|
| ArchiveRequireMirrorCompleteTime |
Specifies if a file must have a modified date that is older than the last mirror complete time in order to be archived
Values: 0 Do not require a file to be older than the last mirror complete time, 1 Require a file to be older than the last mirror complete time
Default: 0
GUI Setting: None
|
| ArchiveUseAlternateDate |
Specifies how files are archived
Values: 0 Archiving is triggered by file access date, 1 Archiving is triggered by file modified date, 2 Archiving is triggered by file creation date
Default: 0
GUI Setting: None
|
| ArchiveUseDNSName |
Specifies if the archive file name uses a name or IP address
Values: 0 Archived files are stored with the server source IP address, 1 Archived files are stored with the source server name
Default: 0
GUI Setting: None
|
| AutoCalcEulaAccepted |
Used internally by the Management Console. Do not modify this entry. |
| AutoReconnect |
Specifies whether to reinstate the target connection(s) when the source machine is brought online after a source machine failure
Values: 0 Do not reconnect, 1 Reconnect
Default: 1
GUI Setting: Server Properties, Setup tab, Source Module Startup Options, Automatically Reconnect During Source Initialization
|
| AutoRemirror |
Specifies whether to remirror when a source is brought online after an auto-disconnect
Values: 0 Do not remirror, 1 Perform a file differences checksum mirror, 2 Perform a full mirror, 3 Perform a file differences mirror, 4 Perform a date comparison mirror and send data only if the source data is newer than the target data.
Default: 1
GUI Setting: Server Properties, Setup tab, Source Module Startup Options, Perform Remirror After Auto-Reconnect
|
| AutoRemirrorRetry |
Specifies how often, in seconds, the source should check for connections that have been reconnected but still need to be remirrored
Values: any integer
Default: 30
GUI Setting: None
|
| AutoRetransmit |
Determines whether or not a source that has lost its connection with a target will attempt to reconnect to the target
Values: 0 Do not attempt to reconnect, 1 Attempt to reconnect
Default: 1
GUI Setting: None
|
| BackupDir |
Location on the target of the backup of the replication sets
Values: any valid path
Default: the location where the Double-Take Availability files were installed
GUI Setting: None
|
| CalculateByVolume |
Calculates the approximate size of a replication set by using the size of the volume and subtracting the free space
Values: 0 Disabled, 1 Enabled
Default: 0
GUI Setting: None
If your replication set contains a large number of files, for example, ten thousand or more, you may want to disable the calculation of the replication set size so that data will start being mirrored sooner. If calculation is enabled, the source calculates the file size before it starts mirroring. This can take a significant amount of time depending on the number of files and system performance.
Disabling calculation will result in the mirror status not showing the percentage complete or the number of bytes remaining to be mirrored. CalculateByVolume can be enabled as a workaround. This setting will get the amount of disk space in use for the entire volume from the operating system, so the calculation occurs instantaneously. However, if the entire volume is not being replicated, the mirror percentage complete and bytes remaining will be incorrect accordingly.
|
| CalculateOnConnect |
Specifies whether or not the replication set size should be calculated on connection
Values: 0 Do not calculate on connection, 1 Calculate on connection
Default: 1
GUI Setting: Connection Manager, Mirroring tab, Calculate Replication Set size on connection
|
| CaseSensitiveRepSetQueries |
This entry is no longer used. |
| ChecksumAll |
Setting to allow for the difference checksum option on mirror, verify, or restore to ignore the date, time, and size of the file and perform a checksum calculation on all files
Values: 0 Checksum using date, time, size comparison, 1 Checksum all files regardless of the date, time, or file size
Default: 1
GUI Setting: Server Properties, Source tab, Mirroring or Verify, Block Checksum All Files on a Difference Mirror
|
| ClusterDir |
Location of a Microsoft Cluster Service installation, if it exists
Values: any valid path
Default: determined by the Microsoft Cluster Service installation
GUI Setting: None
|
| ConnectionFile |
Name of the database file containing connection information
Values: any valid file name
Default: connect.sts
GUI Setting: Server Properties, Database tab, Database Files, Connection
|
| CreateDumpOnAckErrors |
Enables additional logging for out of order acknowledgement errors
Values: 0 Do not create a logging file, 1 Create a logging file
Default: 0
GUI Setting: None
|
| DataPath |
The location of the Double-Take Availability file attribute, replication set, connection, and schedule database files
Values: any valid path
Default: the location where the Double-Take Availability files were installed
GUI Setting: Server Properties, Database tab, Database Files, Folder
|
| DefaultAddress |
The default primary IP address in a multi-homed server
Values: any valid IP address that will act as your primary IP address for connecting the source to the target
Default: <null>
GUI Setting: Server Properties, Network tab, Interface, Default Address
|
| DefaultProtocol |
The default protocol
Values: 2 IPv4 protocol only, 23 IPv4 and IPv6 protocols, 3 TDU (Throughput Diagnostics Utility)
Default: 2
GUI Setting: None
|
| DefaultReaderType |
Internal setting used by Double-Take Backup for recoveries. Do not modify this setting.
|
| DelayGCArbitration |
Number of seconds to delay the arbitration process. This option allows time for the network to become stable before trying to execute arbitration logic, for example, when a cluster failover has occurred, but the network has a lag before it returns to a stable state. Arbitration should not start until the network is back in that stable state.
Values: any positive number
Default: 0
GUI Setting: None
|
| DelayGCConnection |
Delays the GeoCluster Replicated Disk resource connection to allow the cluster service enough time to reset
Values: 1-15
Default: 3
|
| DiffMirrorHardLinkCleanup |
Specifies if files with more than one hard link are deleted on the target during a difference mirror and then relinked after the remirror is complete. This setting only applies to Windows 2008 servers with a Double-Take Availability full-server connection, a Double-Take Backup connection, or a Double-Take Move connection. If mirror performance is negatively impacted by this setting, you may want to disable it.
Values: 0 Hard link files are not deleted and relinked during a difference mirror, 1 Hard link files are deleted and relinked during a difference mirror
Default: 1
GUI Setting: None
|
| DirUNetPort |
Port used by pre-5.2 versions for directed UDP communications
Values: 1025 - 65535
Default: 1105
GUI Setting: None
|
| DisableAttributeReplication |
Specifies whether or not attributes (read-only, hidden, and so on) are replicated to the target
Values: 0 Enable attribute replication, 1 Disable attribute replication
Default: 0
GUI Setting: None
|
| DropOpOnAccessDeniedError |
Specifies whether or not operations are dropped or retried after an access denied error
Values: 0 The operation will be retried, 1 The operation will be dropped
Default: 1
GUI Setting: None
|
| DropOpOnHandleError |
Determines if an additional attempt is made to access a file by a Microsoft API call if the Double-Take Availability call fails.
Values: 0 When opening a file using the Double-Take Availability driver fails, attempt to open the file usingthe Microsoft Win32 API, 1 When opening a file using the Double-Take Availability driver fails, skip the file and document it in the Double-Take Availability log
Default: 1
GUI Setting: None
If the value is set to 0 and the Win32 call also fails, Double-Take Availability will skip the file and document it in the Double-Take Availability log
|
| DTSetupType |
Used by the Double-Take Availability installation program to maintain the installation settings for an upgrade |
| DumpDiskQuotaIntervalMinutes |
Specifies how often, in minutes, a snapshot of the disk quota is taken as a backup in case the live registry is not usable at failover
Values: any integer
Default: 240
GUI Setting: None This option is for full-server products.
|
| DumpHiveIntervalMinutes |
Specifies how often, in minutes, a snapshot of the registry is taken as a backup in case the live registry is not usable at failover
Values: any integer
Default: 240
GUI Setting: None This option is for full-server products.
|
| EmailEnabled |
Specifies if e-mail notification is enabled
Values: 0 E-mail notification is disabled, 1 E-mail notification is enabled
Default: 0
GUI Setting: Server Properties, E-mail Notification tab, Enable notification
This is a read-only setting. If you change this setting using the DTCL SET command or via the registry editor, e-mail notification will not automatically start. You must use the GUI or the DTCL EMAIL ENABLE command to start e-mail notification.
|
| EmailExcludeIds |
Identifies the Windows Event Viewer messages that are excluded from e-mail notification.
Values: Comma or semicolon separated list of Event Viewer IDs. You can indicate ranges within the list.
Default: None
GUI Setting: Server Properties, E-mail Notification tab, Exclude these Event IDs
You must disable and re-enable e-mail notification for a change to take effect.
|
| EmailFromAddress |
Specifies the e-mail address that will appear in the From field of Double-Take Availability generated e-mail messages.
Values: Any valid e-mail address, up to 256 characters
Default: None
GUI Setting: Server Properties, E-mail Notification tab, From Address
|
| EmailIncludeCategories |
Specifies which Event Viewer messages are sent via e-mail
Values: 1 Error messages will be sent via e-mail, 2 Warning messages will be sent via e-mail, 3 Information messages will be sent via e-mail
Default: 1,2
GUI Setting: Server Properties, E-mail Notification tab, Include
You must disable and re-enable e-mail notification for a change to take effect.
|
| EmailNotificationList |
Specifies the e-mail address(es) that will receive Double-Take Availability generated e-mail messages.
Values: A comma separated list of valid e-mail addresses, up to 256 addresses. Each address is limited to 256 characters.
Default: None
GUI Setting: Server Properties, E-mail Notification tab, Send To
|
| EmailPassword |
The password required for SMTP server authentication
Values: Any valid password text
Default: None
GUI Setting: Server Properties, E-mail Notification tab, Log on to SMTP Server, Password
Since the password is encrypted for security, this entry cannot be displayed or changed through the registry or through DTCL.
|
| EmailServer |
The name of the SMTP server for e-mail notification
Values: Any valid server name text
Default: None
GUI Setting: Server Properties, E-mail Notification tab, Mail Server (SMTP)
|
| EmailServerPort |
Specifies the port that the SMTP e-mail server is using
Values: any valid port number
Default: 25
GUI Setting: None
|
| EmailSmtpLogin |
Specifies if SMTP server authentication for e-mail notification is enabled or disabled
Values: 0 SMTP authentation is disabled, 1 SMTP authenticaion is enabled
Default: 0
GUI Setting: Server Properties, E-mail Notification tab, Log on to SMTP Server
Your SMTP server must support the LOGIN authentication method to use this feature. If your server supports a different authentication method or does not support authentication, you may need to add the Double-Take Availability server as an authorized host for relaying e-mail messages. This option is not necessary if you are sending exclusively to e-mail addresses that the SMTP server is responsible for.
|
| EmailSubjectDesc |
Specifies if the Event Viewer message will be appended to the end of the subject line for e-mail notification
Values: 0 Event Viewer message is not included in the subject line, 1 Event Viewer message is included in the subject line
Default: 1
GUI Setting: Server Properties, E-mail Notification tab, Add event description to subject
|
| EmailSubjectPrefix |
Specifies unique text which will be inserted at the front of the subject line for each Double-Take Availability generated e-mail message. This will help distinguish the Double-Take Availability messages from other messages.
Values: Any valid text
Default: Double-Take Availability Notification
GUI Setting: Server Properties, E-mail Notification tab, Subject Prefix
|
| EmailUsername |
The user ID required for SMTP server authentication
Values: Any valid user ID text
Default: None
GUI Setting: Server Properties, E-mail Notification tab, Log on to SMTP Server, Username
Since the username is encrypted for security, this entry cannot be displayed or changed through the registry or through DTCL.
|
| EnableDHCP |
Indicates if Double-Take Availability DHCP support is enabled
Values: 0 Disabled, 1 Enabled
Default: 1
GUI Setting: None
|
| EnablePerformanceTracking |
This entry will be used in the future. |
| EnableRootEncryption |
Specifies if the top-level folders of a replication set are encrypted on the source, they will be encrypted on the target as well
Values: 0 Disabled, 1 Enabled
Default: 1
GUI Setting: None
If the top-level folders in a replication set are not encrypted, disabling this option may obtain a small performance improvement.
|
| EnableShortFileNameProcessing |
Indicates if Double-Take Availability will correct any short file names created by the operating system on the target during a mirror or for create and rename operations during replication
Values: 0 Do not correct any short file names on the target, 1 Correct short file names on the target
Default: 0
GUI Setting: None
|
| EnableSnapshots |
Specifies whether Double-Take Availability snapshot functionality is enabled
Values: 0 Double-Take Availability snapshot functionality is disabled, 1 Double-Take Availability snapshot functionality is enabled
Default: 1
GUI Setting: None
This setting only affects Double-Take Availability snapshot functionality. If this setting is disabled, other snapshot software such as Microsoft Volume Shadow Copy will be unaffected.
|
| EnableTaskCmdProcessing |
Queues tasks inline with replication data
Values: 0 Disable task command processing, 1 Enable task command processing
Default: 0
GUI Setting: Server Properties, Setup tab, Setup Options, Enable Task Command Processing
|
| ExtensionNumber |
Used by the Double-Take Availability log files. |
| FailbackHostname |
Returns the host SPN (Service Principle Name) to its original setting on failback
Values: 0 Disabled, 1 Enabled
Default: 0
GUI Setting: Failover Control Center, Monitor Settings, Active Directory, Failback Hostname
If you are using Active Directory, this option should be enabled or you may experience problems with failback.
|
| FailoverHostname |
Automatically removes the host SPN (Service Principle Name) from Active Directory on the source
Values: 0 Disabled, 1 Enabled
Default: 0
GUI Setting: Failover Control Center, Monitor Settings, Active Directory, Failover Hostname
If you are using Active Directory, this option should be enabled or you may experience problems with failover.
|
| FailoverOnRouteFailure |
Determines if failover will occur when receiving a router message back from an IP address on the network
Values: 0 Failover will not occur when receiving a destination host unreachable message, 1 Failover will occur when receiving a destination host unreachable message
Default: 1
GUI Setting: None
|
| FCCHelpPath |
The path and file name to the Failover Control Center online help file
Do not change this value or the online help will not work.
|
| FileAccessRetry |
The number of times a failed driver call will be retried by the service.
Values: 1 - 65535
Default: 10
GUI Setting: None
|
| FileQueueSize |
When a mirror is started, one thread reads from the disk and builds the file queue. Another set of threads reads files off of the queue and sends them to the target. This setting is the maximum size of the queue in entries. If you had 100 files to be mirrored and this was set to 16 (the default value), the first thread would fill the queue to a maximum of 16 entries.
Values: 1 - 65535
Default: 16
GUI Setting: None
This value must be set prior to starting the mirror process. The higher the number, the more memory that is used.
|
| ForceReplaceOnFailover |
Specifies additional failover options
Values: 0 Use standard failover add / replace settings with no additional settings, 1 Replace the target server name with that of the source and add the source IP address, 2 Add the source server name to the target and replace the target IP address, 3 Replace the target server name with that of the source and replace the target IP address
Default: 0
GUI Setting: Failover Control Center, Monitor Settings, Failover Method
|
| ForceVerifyOnMirror |
Specifies if verification will be performed with every difference mirror
Values: 0 Verification is not performed with every difference mirror, 1 Verification is performed with every difference mirror
Default: 0
GUI Setting: None
|
| HardLinkInterval |
Specifies the length of time, in seconds, to generate a hard link report
Values: any valid integer
Default: 3600
GUI Setting: None
|
| HardLinkLogPath |
Specifies the location where hard links will be logged. If no path is specified, the location defined in LogDir will be used.
Values: any valid path
Default: None
GUI Setting: None
|
| HBLoopback |
This entry is no longer used. |
| HBTrace |
Specifies whether heartbeat debugging information is generated
Values: 0 not generated, 1 Generated
Default: 0
GUI Setting: None
|
| HBTTL |
Number of seconds without receiving a heartbeat before a remote machine is considered unavailable
Values: 0 - 65535
Default: 10
GUI Setting: None
|
| HeartbeatIgnoreIPs |
Indicates the IP address(es) to be ignored by the Management Console. An ignored IP address will not be displayed in the Management Console servers tree.
Values: a semi-colon separate list of IP addresses in the format x.x.x.x
Default: none
GUI Setting: None
|
| HPQueueRatio |
Ratio of replication packets to one mirror packet
Values: 0 - 65535
Default: 5
GUI Setting: Server Properties, Source tab, Queue Ratio, Replication Packets to 1 Mirror Packet
An HPQueueRatio of 5 indicates 5 replication packets to 1 mirror packet. If you change this value, the source service must be stopped and restarted to implement the change.
|
| IgnoreAlternateStreamFiles |
Specifies alternate streams to skip during mirroring and replication
Values: a semi-colon separate list of stream names. The stream names are not case-sensitive
Default: none
GUI Setting: None
|
| IgnoreArchiveBit |
Specifies if the archive bit is compared during verification
Values:0 Archive bit is compared during a verification, 1 Archive bit is not compared during a verification
Default: 1
GUI Setting: None
|
| IgnoreDeleteOps |
Specifies if file and directory delete operations will be replicated to the target
Values: 0 Delete operations are replicated to the target, 1 Delete operations are not replicated to the target
Default: 0
GUI Setting: Server Properties, Source tab, Replication, Ignore Delete Operations
|
| IgnorePPPAddresses |
Identifies if Double-Take Availability will use PPP (Point-to-Point Protocol) or SLIP (Serial Line Internet Protocol) adapters
Values: 0 Double-Take Availability will send out heartbeats across the PPP/SLIP adapter, 1 Double-Take Availability will not send out heartbeats across the PPP/SLIP adapter
Default: 1
GUI Setting: None
|
| IgnoreSourceErrors |
Ignores source errors that will cause an update to the target data state
Values: 0 Do not ignore source errors, 1 Ignore source errors
Default: 0
GUI Setting: None
|
| IgnoreThumbnailStreams |
Specifies if thumbnails will be replicated to the target.
Values:0 Double-Take Availability will mirror and replicate all data streams, 1 Double-Take Availability will not mirror or replicate any data about the alternate data streams for thumbnail images. When comparing data for a verification or difference mirror,alternate data streams for thumbnails will not be reported as different.
Default: 1
GUI Setting: None
If you change this value to 0, you must restart the Double-Take service in order for the Double-Take Availability driver to begin sending all data stream information to the service. If you change this value to 1, you do not need to restart the service.
|
| IgnoreWriteFailureOnTarget |
Specifies whether failures to write a file on the target are logged
Values: 0 Log all write failures on the target, 1 or any larger integer indicates that number of write failures which will be ignored before starting to log the write failures
Default: 0
GUI Setting: None
|
| IncludeSysVolInfo |
Specifies whether the system volume information folder is mirrored and replicated
Values:0 Do not include the system volume information folder, 1 Include the system volume information folder
Default:0
GUI Setting: None
|
| InstallPath |
Path specified during the Double-Take Availability installation
Values: any valid path
Default: specified during installation
GUI Setting: None
|
| InstallVersionInfo |
Installation number specified during the Double-Take Availability installation. Do not modify this entry. |
| IntermediateQueueLimit |
Amount of memory, in KB, that may be allocated to the intermediate queue by the system memory manager when MemoryAllocatorMode is set to mixed mode (2).
Values: 512-4194304
Default: 65536
GUI Setting: None
The Double-Take service must be restarted in order for this change to take effect.
|
| IPFailover |
Specifies whether or not to failover the IP addresses during failover
Values:0 Do not failover IP addresses 1 Failover IP addresses
Default: 1
GUI Setting: Failover Control Center, Monitor Settings, Items to Failover, IP Address(es)
|
| KFAIOpenRetry |
Specifies the number of times an operation is retried if the driver return an error
Values: any valid integer
Default: 10
GUI Setting: None
|
| LanguagesAvailable |
Specifies the Double-Take Availability language support that has been installed. Do not modify this setting. If you need to add or remove language support, use the Double-Take Availability installation program. |
| LanguageSelected |
Specifies the language of the verification log
Values: Depends on LanguagesSupported
Default: Language used during the installation
GUI Setting: Server Properties, Logging, Verification, Language
|
| LanguagesSupported |
Specifies the available languages for the verification log. Do not modify this setting. If you need to add or remove language support, use the Double-Take Availability installation program. |
| LastModifiedReadDelay |
Specifies the length of time, in seconds, to wait before reading the last modified file time attribute
Values: any valid integer
Default: 15
GUI Setting: None
This option is only used if SendLastModifiedTimeOnClose is disabled
|
| LoadSourceTarget |
Specifies the functionality of the Double-Take service
Values:0 Neither the source nor target modules are loaded, 1 Only the source module is loaded, 2 Only the target module is loaded, 3 Both the source and target modules are loaded
Default: 3
GUI Setting: None
This setting will not take effect until the Double-Take service has been restarted.
|
| LogAllOrphans |
Specifies whether orphan files are logged to the Double-Take Availability log on the target
Values: 0 Do not log the orphan files to the Double-Take Availability log on the target, 1 Log the orphan files to the Double-Take Availability log on the target
Default: 0
GUI Setting: Connection Manager/Restoration Manager, Orphans tab, Log Orphaned Files to Target List
|
| LogDir |
The location of the Double-Take Availability messages/alerts, verification, and statistics log files
Values: any valid path
Default: the location where the Double-Take Availability files were installed
GUI Setting: Server Properties, Logging tab, Folder
|
| LogFile |
The name of the Double-Take Availability messages/alerts log file
Values: any valid file name
Default: DTLog
GUI Setting: None
|
| LogHardlinks |
Indicates whether hard links are logged to replication_set_name.log when the replication set size is calculated
Values: 0 Hard links are not logged, 1 Hard links are logged
Default: 0
GUI Setting: None
|
| LogMessageLevel |
Specifies the types of messages logged to the.dtl files
Values: 0 No messages will be logged, 1 Only alert messages will be logged, 2 Alert and release messages will be logged, 3 Alert, release, and debug messages will be logged
Default: 2
GUI Setting: None
|
| LoopbackID |
This entry is no longer used. |
| MaxChecksumBlocks |
Specifies the number of checksum values retrieved from the target
Values: any integer
Default: 32
GUI Setting: None
|
| MaxConnections |
Number of network requests that can be processed simultaneously. Windows is limited to 5 simultaneous requests.
Values: 0 - 65535
Default: 5
GUI Setting: None
Double-Take Software recommends that you not change this value.
|
| MaxLogFileSize |
Maximum size, in bytes, of any .dtl log file
Values:limited by available disk space
Default: 5242880
GUI Setting: Server Properties, Logging tab, Messages & Alerts, Maximum Length
|
| MaxLogPathname |
The maximum length of a file name (the entire volume\directory\filename including slashes, spaces, periods, extensions, and so on) that will be displayed in the Double-Take Availability log file and the Windows Event Viewer. File names longer than the MaxDisplayablePath will be truncated and will be followed by an ellipsis (...).
Values:1-32760
Default: 32760
GUI Setting: None
|
| MaxNumberofLogFiles |
Maximum number of .dtl log files that can exist at one time. When Double-Take Availability creates a new .dtl file, if this number is exceeded, the oldest .dtl file is deleted.
Values: 1 - 999
Default: 5
GUI Setting: Server Properties, Logging tab, Messages & Alerts, Maximum Files
|
| MaxRemoveOrphansOpSize |
Determines whether or not Double-Take Availability will send over multiple remove orphan operations. Double-Take Availability will send over the operations if a directory has more files than this number.
Values: 0 - 131072
Default: 1000
GUI Setting: None
|
| MaxRetry |
A generic, application wide setting specifying the number of retry attempts for processes such as creating sockets, starting the service, and so on
Values: any integer
Default: 5
GUI Setting: None
|
| MaxWriteChunkSize |
Maximum merged op size (in bytes) used during replication
Values: 1 - 131072
Default: 65536
GUI Setting: None
|
| MCHelpPath |
The path and file name to the Management Console online help file
Do not change this value or the online help will not work.
|
| MemoryAllocatorCallbackMode |
Determines what action is taken when the MemoryQueueToDiskThreshold is met
Values: 0 Auto-disconnect processing is initiated when theMemoryQueueToDiskThreshold has been met. Connections will be reestablished when auto-reconnect occurs, 1 The Double-Take service stops pulling operations from the driver when theMemoryQueueToDiskThreshold has been met. The target will pause the source.The service will resume pulling operations when the target tells the source to resume, 2 The source and target begin queuing operations to disk.
Default: 2
GUI Setting: None
|
| MemoryQueueToDiskThreshold |
A percentage of QmemoryBufferMax that will trigger queuing to disk.
Values: any valid percentage
Default: 100
GUI Setting: None
|
| MinCompressionFileSize |
The minimum file size, in bytes, that will be compressed. Files smaller than this size will not be compressed.
Values: any file size
Default: 1024
GUI Setting: None
|
| MirrorChunkSize |
Block size, in bytes, used in the mirroring process
Values: 1 - 1048576
Default: 65536
GUI Setting: Server Properties, Source tab, Mirror Queue, Size of Mirror Packets
A higher block size value gives you better throughput, but only to a certain point, then it starts using more memory (this has to do with the way memory is allocated and deallocated). A lower block size value produces slower throughput, but uses memory efficiently.
|
| MirrorEncryptedFiles |
Specifies if Windows 200x encrypted files are mirrored
Values: 0 Encrypted files are not mirrored, 1 Encrypted files are mirrored
Default: 1
GUI Setting: None
|
| MirrorOverwrite |
Determines if the mirror process overwrites existing files
Values: 0 never overwrite, 1 always overwrite, 2 overwrite if older
Default: 1
GUI Setting: None
|
| MirrorPrompting |
This entry is no longer used. |
| MirrorQueueLimit |
Maximum number of mirror operations that can be queued on the source machine
Values: 1 - 65535
Default: 1000
GUI Setting: Server Properties, Soruce tab, Mirror Queue, Maximum Pending Mirror Operations
|
|
MirrorRootAttributes
|
Specifies whether or not root permissions from the source are mirrored to the target
Values: 0 Root permissions are not mirrored to the target, 1 Root permissions are mirrored to the target
Default: 1
GUI Setting: None
|
| MirrorZeroKFiles |
Specifies whether or not empty files, zero byte files, are included in a mirror
Values: 0 Zero byte files are skipped and not mirrored to the target, 1 All files are mirrored to the target
Default: 1
GUI Setting: None
If MirrorZeroKFiles is enabled (0), zero byte files are skipped during a full mirror, file differences mirror, and a verification with synchronization. Zero byte files that contain alternate data streams that are not empty, will still be skipped if MirrorZeroKFiles is enabled.
|
| MissedHeartbeats |
Specifies the number of heartbeats that can go unanswered by the source before failover occurs, when using Double-Take service responses to monitor for failover
Values: 1 - 65535
Default: 20
GUI Setting: Failover Control Center, Monitor Settings, Missed Packets
|
| MissedPackets |
Specifies the number of requests sent by the target that go unanswered by the source before failover occurs, when using network responses to monitor for failover
Values: 1 - 65535
Default: 5
GUI Setting: Failover Control Center, Monitor Settings, Missed Packets
|
| MoveOrphanedFiles |
Specifies if orphaned files are deleted or moved to the directory specified by MoveOrphansDir
Values: 1 Move, 0 Delete
Default: 0
GUI Setting: Connection/Restoration Manager, Orphans tab, Move/Delete Orphan Files
|
| MoveOrphansDir |
Indicates the name of the directory where orphaned files will be moved if MoveOrphanedFiles=1
Values: any valid path
Default: the location where the Double-Take Availability files were installed
GUI Setting: Connection/Restoration Manager, Orphans tab, Move Orphaned Files to following location
|
| NameFailover |
Specifies whether or not to failover machine names
Values: 0 Do not failover machine names, 1 Failover machine names
Default: 1
GUI Setting: Failover Control Center, Monitor Settings, Items to Failover, Server Name
|
| NetPort |
Port used by pre-5.2 versions for TCP communications
Values: 1025 - 65535
Default: 1100
GUI Setting: None
|
| NetworkRetry |
Specifies the interval, in seconds, at which Double-Take Availability will attempt to reconnect to the target
Values: any positive number
Default: 10
GUI Setting: None
|
| NetworkStatusInterval |
This entry is no longer used. |
| NetworkTimeout |
The maximum length of time, in seconds, to wait on a network connection. If data is not received over a network connection within the specified time limit, the connection is closed. During idle periods, Double-Take Availability sends small amounts of keep-alive data at an interval 1/6 of the NetworkTimeout value to keep the socket from being inadvertently closed.
Values: any integer
Default: 120
GUI Setting: None
If you are archiving files and it takes longer than the NetworkTimeout specified (for example, this may happen if the DTArchiveBin is located on an alternate volume), the archive operation will complete on the target, but the full file will not be changed to a link on the source because the source detected the network timeout.
|
| NewAcquireData |
An internal setting for mirroring. Do not modify this setting. |
| NodeLockedLicenseKey |
24-character activation code for a node-locked license
Values: Unique value for each customer
Default: N/A
GUI Setting: Server Properties, Licensing tab, Additional Codes
|
| NodeLockedServerInfo |
24-character code that is used to generated a node-locked license
Values: Unique value for each customer
Default: N/A
GUI Setting: Server Properties, Licensing tab, Node-Locking, Server Information
|
| OpBufferMax |
Specifies the number of operations that can be stored in the memory queue prior to queuing to disk.
Values: 0 There is no limit to the number of operations that can be stored in the memory queue, 1 or any larger integer The number of operations that can be stored in the memory queue
Default: 200000
GUI Setting: None
|
| OpLogging |
Specifies whether operations from the Double-Take Availability driver are logged
Values: 0 Do not log operations, 1 Log operations
Default: 0
GUI Setting: None
|
| PingFrequency |
Specifies, in seconds, how often a ping is sent to the source from a monitoring target
Values: 1 - 65535
Default: 5
GUI Setting: Failover Control Center, Monitor Settings, Monitor Interval
|
| Port |
Port connection for core Double-Take Availability communications
Values: 1025 - 65535
Default: 6320
GUI Setting: Server Properties, Network tab, Communications Port and Management Console, File, Options, Configuration tab, Communications Port
|
| PostFailbackScript |
Location on the target where the target post-failback script is located
Values: Any valid path
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Post-Failback
|
| PostFailbackScriptArgs |
Arguments to be used with the target post-failback script
Values: Any valid argument
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Post-Failback, Arguments
|
| PostFailoverScript |
Location on the target where the target post-failover script is located
Values: Any valid path
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Post-Failover
|
| PostFailoverScriptArgs |
Arguments to be used with the target post-failover script
Values: Any valid argument
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Post-Failover, Arguments
|
| PreFailbackScript |
Location on the target where the target pre-failback script is located
Values: Any valid path
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Pre-Failback
|
| PreFailbackScriptArgs |
Arguments to be used with the target pre-failback script
Values: Any valid argument
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Pre-Failback, Arguments
|
| PreFailbackWait |
Specifies whether or not to wait for the target pre-failback script to complete before finishing a failback
Values: 0 Do not wait, 1 Wait
Default: 0
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Pre-Failback, Delay failback until script completes
|
| PreFailoverScript |
Location on the target where the target pre-failover script is located
Values: Any valid path
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Pre-Failover
|
| PreFailoverScriptArgs |
Arguments to be used with the target pre-failover script
Values: Any valid argument
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Pre-Failover, Arguments
|
| PreFailoverWait |
Specifies whether or not to wait for the target pre-failover script to complete before finishing a failover
Values: 0 Do not wait, 1 Wait
Default: 0
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Target, Pre-Failover, Delay failover until script completes
|
| PriorityClass |
The priority level at which the Double-Take service runs.
Values: 2 normal priority, 3 high priority
Default: 3
GUI Setting: None
The Double-Take service runs at high priority by default. This option should not be modified, however, if the priority is lowered to normal (2), it can be done through Windows Task Manager. If you change the priority using the Set DTCL command, then the service will require a restart before the priority is changed.
|
| ProductCode |
Used by the Double-Take Availability installation program to maintain the installation settings for an upgrade. Do not modify this entry. |
| ProductName |
Used by the Double-Take Availability installation program to maintain the installation settings for an upgrade. Do not modify this entry. |
| QJournalDir |
The location where the queue is stored.
Values: any valid path
Default: the location specified during the installation
GUI Setting: Server Properties, Queue tab, Location, Folder
For best results and reliability, you should select a dedicated, non-boot volume. The queue should be stored on a fixed, local NTFS volume. This location also stores the Double-Take Availability driver pagefile.
|
| QJournalFileSize |
The size, in MB, of each queuing transaction log file.
Values: any valid file size, up to 4095 MB
Default: 5
GUI Setting: None
|
| QJournalFreeSpaceMin |
The minimum amount of disk space, in MB, in the specified QJournalDir that must be available at all times.
Values: dependent on the amount of physical disk space available
Default: 250
GUI Setting: Server Properties, Queue tab, Memory and Disk Usage, Minimum Free Space
The QJournalFreeSpaceMin should be less than the amount of physical disk space minus QJournalSpaceMax.
|
| QJournalPreload |
The number of operations being pulled from the disk queue at one time. Do not modify this setting. |
| QJournalSpaceMax |
The maximum amount of disk space, in MB, in the specified QJournalDir that can be used for Double-Take Availability queuing. When this limit is reached, Double-Take Availability will automatically begin the auto-disconnect process.
Values: dependent on the amount of physical disk space available
Default: Unlimited
GUI Setting: Server Properties, Queue tab, Memory and Disk Usage, Maximum disk space for queue
The unlimited setting allows the disk queue usage to automatically expand whenever the available disk space expands. Setting this option to zero (0) disables disk queuing. Even if you are using the Unlimited option, Double-Take Availability will only store 16,384 log files. If you are using the default 5MB file size, this is approximately 80GB of data. If you anticipate needing to be able to queue more data than this, you should increase the size of the log files.
|
| QLogWriteThrough |
Specifies if the disk queues are write-through mode
Values: 0 Disk queues are not write-through mode, 1 Disk queues are write-through mode
Default: 0
GUI Setting: None
While write-through mode may decrease the frequency of auto-disconnects, it may also decrease the performance of the source server.
|
| QMemoryBufferMax |
The amount of Windows system memory, in MB, that, when exceeded, will trigger queuing to disk.
Values: dependent on the amount of physical memory available; minimum of 32 MB
Default: 128 or 512 MB, depending on your operating system
GUI Setting: Server Properties, Queue tab, Memory and Disk Usage, Maximum system memory for queue
|
| QueryOnQuorumFile |
Identifies if the Double-Take service will reopen closed files on the quorum drive
Values: 0 The Double-Take service will not attempt to reopen a closed file on the quroum drive to get security descriptors or last modified times, 1 The Double-Take service will attempt to reopen a closed file on the quroum drive to get security descriptors or last modified times.
Default: 1
GUI Setting: None
|
| QueueSizeAlertThreshold |
The percentage of the queue that must be in use to trigger an alert message in the Windows Event Viewer.
Values: any valid percentage
Default: 50
GUI Setting: Server Properties, Queue tab, Queue Usage Alert Threshold, Alert at following queue usage percentage
|
| Registered |
This entry is no longer used. |
| RemoveAllOrphans |
Specifies if all orphan files will be removed or only those based on RemoveOrphanTime
Values: 0 Remove orphans based on the entry RemoveOrphansTime, 1 Remove all orphans
Default: 1
GUI Setting: Connection/Restoration Manager, Orphans tab, Remove All Orphans
|
| RemoveOrphansTime |
Specifies the amount of time, in minutes, that must be expired before an orphan file is removed
Values: 1 - 131072
Default: 60
GUI Setting: Connection/Restoration Manager, Orphans tab, Remove Orphans not modified within the following time period
|
| RemoveSharesOnDisconnect |
Specifies if shares are removed on the target machine when a Double-Take Availability replication set is disconnected from a target or a source machine is manually shutdown by the administrator. (Shares are not removed if either the source or target machines fail.)
Values: 0 Remove shares from the target, 1 Do not remove shares from the target
Default: 1
GUI Setting: None
|
| ReplaceTarget |
Specifies whether or not to replace the target identity with the source identity during a failover
Values: 0 Do not replace, 1 Replace
Default: 0
GUI Setting: Failover Control Center, Monitor Settings, Failover Method
|
| ReplicateNtSecurityByName |
Determines whether or not Double-Take Availability replicates permissions and attributes assigned to local (non-domain) users and groups
Values: 0 Do not replicate by name, 1 Replicate by name
Default: 0
GUI Setting: Server Properties, Source tab, Replication, Replicate NT Security by Name
|
| ReplicationDiskCheckScript |
Specifies the script to run if validation of the replication drive fails
Values: Any valid path and script file
Default: <null>
GUI Setting: None
|
| ReplicationDiskCheckTimeOut |
Specifies the interval, in seconds, between validation checks when ReplicationDiskCheckSript is populated
Values: any integer
Default: 300
|
| RepSetDBName |
Name of the database that contains replication set information
Values: any valid file name
Default: DblTake.db
GUI Setting: Server Properties, Database tab, Database Files, Replication Set
|
| RestoreOverwrite |
Determines if the restoration process overwrites existing files
Values: 0 never overwrite, 1 always overwrite, 2 overwrite if older
Default: 2
GUI Setting: Restoration Manager, Servers tab, Overwrite existing files during restore
|
| RestorePrompting |
This entry is no longer used. |
| RetentionFlag |
This entry will be used in the future. |
| RunDTInfoOnCutover |
Specifies if DTInfo is launched before a failover when protecting a full-server workload
Values: 0 Do not launch DTInfo, 1 Launch DTInfo
Default: 1
GUI Setting: None
|
| RunScriptatSnaptime |
If a script is specified, the script is launched on the target before Double-Take Availability executes any snapshots. The snapshot will not be executed until the script has
completed. If the script returns an error, the snapshot will still
execute.
Values: any valid path and script name
Default: <null>
GUI Setting: None
|
| RunScriptInsteadofSnap |
Specifies if a script specified in RunScriptAtSnaptime is executed
Values: 0 Execute script specified in RunScriptAtSnaptime,
1 Do not execute script specified in RunScriptAtSnaptime
Default: 1
GUI Setting: None
|
| SaveStatFile |
Determines if the statistic.sts (statistics logging) file is saved or ovewritten
Values: 0 overwrite, 1 saved as statistic-old.sts
Default: 1
GUI Setting: None
|
| ScheduleFile |
Name of the database file that contains transmission scheduling information
Values: any valid file name
Default: Schedule.sts
GUI Setting: Server Properties, Database tab, Database Files, Schedule
If you change the name of the database file, the source service must be stopped and restarted to start logging to the new database file.
|
| ScheduleInterval |
The number of seconds to wait before checking the transmission schedules to see if transmission should be started or stopped
Values: 1 - 3600
Default: 1
GUI Setting: None
|
| SendDirLastModifiedTime |
Specifies if the last modified time for directories will be transmitted to the target during a difference mirror
Values: 0 last modified time on directories will not be sent to the target, 1 last modified time on directories will be sent to the target
Default: 1
GUI Setting: None
|
| SendFileTimesOnCreate |
Specifies whether a file is accessed twice so that the file’s creation time can be modified to match the source
Values: 0 The Double-Take service will not access newly created files that have not been modified. These files on the target will have the date and time of when the file was created on the target, 1 The Double-Take service will access newly created files. These files on the target will have the same date and time as the source.
Default: 0
GUI Setting: None
New files created on the source that have not been modified will have the date and time of when the file is created on the target. The date and time will be corrected to match the source’s true file attributes when a remirror or verification modifies them to match the source or the file is modified by a user or application on the source. For example, if the source machine's clock is set to 2:00 PM and the target machine is set to 4:00 PM, a newly created file that has not been modified will have a time stamp of 4:00 PM when it is applied to the target. If this option is enabled (1), Double-Take Availability will access the file twice, to correctly set the time to 2:00 PM to reflect the file’s true attributes. If this option is disabled (0), Double-Take Availability will not access the file twice, and the file will have the target time of 4:00 PM until it is modified (remirror, verification, or user or application update).
|
| SendLastModifiedTimeOnClose |
Specifies that the last modified time attribute is sent when a file is closed
Values: 0 Last modified time is sent when Double-Take Availability has not received any additional operations for the file in the time period specified by LastModifiedReadDelay, 1 Last modified time is sent when a file is closed, which may not be immediately depending on system processing
Default: 1
GUI Setting: None
If system processing delays (such as the system cache manager not flushing quickly enough) are causing delays in processing the last modified time, you may want to consider disabling this option (0).
|
| ServicesToKeepRunning |
Services that will not be stopped on the target or target image server when using a full-server failover product
Values: Comma separated list of service names
Default: <null>
GUI Setting: None
|
| ServiceStopState |
Used internally by the Double-Take service. Do not modify this entry.
|
| ShareFailover |
Specifies whether or not to failover shares
Values: 0 Do not failover shares, 1 Failover shares
Default: 1
GUI Setting: Failover Control Center, Monitor Settings, Items to Failover, Share(s)
|
| ShareUpdateInterval |
Specifies how often, in minutes, the share file will be sent to the target
Values: 1 - 65535
Default: 60
GUI Setting: None
|
| ShortFileNameScanIntervalMinutes |
Specifies how often, in minutes, the registry is scanned for short file names for use in full-server failover
Values: any valid integer
Default: 240
GUI Setting: None
|
| ShutdownRebootTimeoutMinutes |
Specifies the amount of time, in minutes, to wait for the source to shutdown during failover when protecting a full-server workload
Values: any valid integer
Default: 5
GUI Setting: None
|
| ShutdownTimeout |
The amount of time, in seconds, for the service to wait prior to completing the shutdown so that Double-Take Availability can persist data on the target in an attempt to avoid a remirror when the target comes back online
Values: any valid number of seconds where 0 (zero) indicates waiting indefinitely and any other number indicates the number of seconds
Default: 0
GUI Setting: Server Properties, Setup tab, Server Shutdown Timeout
This setting only controls the service shutdown from the Double-Take Availability clients. It does not control the service shutdown through a reboot or from the Service Control Manager.
|
| SkipCompressionFileExt |
A period delimited list of file types that are not compressed, even if compression is enabled.
Values: any period delimited list of file types
Default: mp3.exe.wmv.wma.qt.mpg.mpeg.zip.jpg.jpeg.tiff.tar.rar.cab
GUI Setting: None
|
| SnapshotType |
Specifies the type of snapshot that Double-Take Availability takes
Values: 0 Create a client-accessible snapshot based on the type of connection established, 1 Always create a client-accessible snapshot, 2 Always create a non-client-accessible snapshot
Default: 0
GUI Setting: None
|
| SourceNewerMaxFileCount |
The number of files to compare during a source newer difference mirror
Values: 1-1000
Default: 16
GUI Setting: None
|
| SourceNewerTimeDiff |
The number of milliseconds that file time stamps must be different by in order for the files to be considered different. For example, if the value is set to 500, the files must be 501 milliseconds different in order to be considered different.
Values: any valid integer
Default: 500
GUI Setting: None
|
| SourcePendingAcks |
The number of operations received by the target queue in which the source is waiting for a response
Values: 100 - 20,000
Default: 2000
GUI Setting: None
|
| SourcePostFailbackScript |
Path on the source where the source post-failback script is located
Values: Any valid path
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Source, Post-Failback
|
| SourcePostFailbackScriptArgs |
Arguments to be used with the source post-failback script
Values: Any valid argument
Default: <null>
GUI Setting: Failover Control Center, Monitor Settings, Scripts, Source, Post-Failback, Arguments
|
| SSMKeepTargetActivationCode |
Specifies if the activation code on the target is replaced or maintained after a full-serer failover. Do not modify this entry. |
| SSMShutdownServices |
Used by full-server workloads to determine services to shutdown during failover. Do not modify this entry. |
| SSMShutdownSource |
Specifies if the source is shutdown when performing failover from the Failover Control Center
Values: 0 The source will not be shutdown, 1 The source will be shutdown
Default: 1
GUI Setting: None
This setting must be applied on the target server. Additionally, the Double-Take service must be restarted on the target after a change is made to this setting.
|
|
SSMStagingBase
|
Specifies the folder to use for staging system state files for full-server failover. Do not modify this entry.
|
|
SSMUseDiskSignature
|
Used by full-server workloads to determine how target disk signatures are used. Do not modify this entry.
|
| StartupScript |
Used by full-server workloads to control the post-failover script after reboot after failover. Do not modify this entry. |
| StatsDriverLogFlags |
Indicates which driver statistics are logged to the Double-Take Availability log
Values: 0 No driver statistics are logged, 1 State, 2 Operations, 4 Paging, 8 Timing
Default: 0
GUI Setting: None
Use the sum of various values to log multiple driver statistics. For example, a setting of 5 would log paging and state statistics. A setting of 7 would log paging, operations, and state statistics. A setting of 15 would log all driver statistics.
|
| StatsFileName |
Default file for logging statistics
Values: any valid file name
Default: statistic.sts
GUI Setting: Server Properties, Logging tab, Statistics, Filename
|
| StatsLoggingOn |
Specifies if Double-Take Availability logs statistics at startup
Values: 0 Stats logging does not start when Double-Take Availability starts, 1 Stats logging starts when Double-Take Availability starts
Default: 0
GUI Setting: Server Properties, Setup tab, Setup Options, Log Statistics Automatically
|
| StatsMaxFileSize |
Maximum size, in MB, for the statistic.sts file
Values: limited by available disk space
Default: 10485760
GUI Setting: Server Properties, Logging tab, Statistics, Maximum Length
|
| StatsMaxObjects |
This entry is no longer used. |
| StatsPort |
Port used by pre-5.2 versions for DTStat to gather statistics
Values: 1025 - 65535
Default: 1106
GUI Setting: None
|
| StatsShmSize |
This entry is no longer used. |
| StatsWriteInterval |
Interval, in minutes, in which statistics are written to the statistic.sts file
Values: 0 - 65535
Default: 5
GUI Setting: Server Properties, Logging tab, Statistics, Write Interval
|
| SystemMemoryLimit |
Set by the Double-Take service, each time it is started, to record the amount of available memory. |
| TargetPaused |
Internal setting that indicates if the target machine is paused. Do not modify this setting. |
| TargetPausedVirtual |
Internal setting that indicates which target machines are paused. Do not modify this setting. |
| TCPBufferSize |
Size of the TCP/IP buffer in bytes.
Values: 4096-7500000
Default: 375000
GUI Setting: None
The default setting creates a TCP window that will accommodate most environments. In most environments, this value will not need to be adjusted. However, if your Double-Take Availability network has a long end-to-end route and the throughput is not where you would expect it to be, then adjusting this parameter may have beneficial results. This value is the bandwidth delay product, which is calculated using the bandwidth of the network (in bits/second) times the round trip time (in seconds) between the two ends. Some recommended settings to improve Double-Take Availability throughput performance are:
Gigabit LAN—The setting should be changed to 375000.
WAN—The setting should be adjusted to 130000.
While the calculations are fairly straight forward, the values that have been suggested are not exact because they depend on round trip time. Some improvements could be gained by adjusting these values either higher or lower. The value suited for your environment can best be determined through trial and error testing.
|
| TempDir |
Temporary directory used when replicating Windows 200x encrypted files.
Values: Any valid path
Default: \Program Files\DoubleTake\Temp
GUI Setting: None
|
| TGBlockOnConnect |
Blocks the target path for all connections, regardless of the source, so that the data cannot be modified
Values: 0 Target paths are not blocked, 1 Target paths are blocked
Default: 0
GUI Setting: None
Do not modify this setting without assistance from Technical Support.
|
| TGCloseDelay |
The length of time, in milliseconds, a file is held open on the target
Values: 0 - 2000
Default: 1000
Default: 500
GUI Setting: None
If disk caching on the target is disabled either manually or by default (for example, by default on disks that host Active Directory database files), the target system may be slow during a mirror. If so, descreasing this setting to 100, 10, and 0 will result in incremental improvements, with 0 returning the system performance to normal.
|
| TGDaysToKeepMovedFiles |
Specifies the length of time, in days, to keep moved files if TGMoveFilesOnDelete is enabled
Values: any valid integer
Default: 0
GUI Setting: Server Properties, Target tab, Move Deleted Files, Remove after the following number of days
|
| TGDisableAttributeReplication |
Specifies whether or not the attributes compression, ACL, and file mask are written to the target during mirroring and replication
Values: 0 Enable attribute replication 1 Disable attribute replication
Default: 0
GUI Setting: None
|
| TGExecutionRetryLimit |
The number of times an unfinished operation will be retried on the target before it is discarded. If this value is set to zero (0), an operation will never be discarded and will be retried on the target until it is applied.
Values: 0 - 65536
Default: 0
GUI Setting: None
|
| TGFileAlloc |
Indicates that Double-Take Availability allocates an entire file on the first write of a mirror operation
Values: 0 Disabled 1 Enabled
Default: 1
GUI Setting: None
To help eliminate file fragmentation on the target server, Double-Take Availability should allocate the entire file first. With extremely large files, the file allocation may take a long time. Therefore, you may want to disable the file allocation. If you disable file allocation, you will have more fragmentation on the target disk.
|
| TGMirrorCapacityHigh |
Maximum percentage of system memory that can contain mirror data before the target signals the source to pause the sending of mirror operations.
Values: 2-75
Default: 20
GUI Setting: Server Properties, Target tab, Files, Target Mirror Capacity High Percentage
|
| TGMirrorCapacityLow |
Minimum percentage of system memory that can contain mirror data before the target signals the source to resume the sending of mirror operations.
Values: 1-75
Default: 15
GUI Setting: Server Properties, Target tab, Files, Target Mirror Capacity Low Percentage
The maximum value forTGMirrorCapacityLow is either 75 or TGMirrorCapacityHigh, which ever is lower.
|
| TGMoveFilesOnDelete |
Specifies whether files deleted on the source are actually moved to a different location on the targer rather than being deleted on the target
Values: 0 Files deleted on the source will be deleted on the target, 1 Files deleted on the source will be moved to a different location on the target
Default: 0
GUI Setting: Server Properties, Target tab, Move Deleted Files, Moved deleted files to the following location
If this option is enabled, the deleted files will be moved to the location specified in TGMoveFilesPath.
|
| TGMoveFilesPath |
Specifies where deleted files on the source are being moved to on the target
Values: any valid path
Default: <null>
GUI Setting: Server Properties, Target tab, Move Deleted Files, Moved deleted files to the following location
|
| TGRetryLocked |
Minimum number of seconds to wait before retrying a failed operation on a target
Values: 0-65536
Default: 3
GUI Setting: Server Properties, Target tab, Queues, Retry Delay for Incomplete Operations
|
| TGThreadCount |
This setting is no longer used |
| TGUnfinishedOpEvent |
Specifies whether or not unfinished operations on the target are logged to the Event Viewer
Values: 0 Unfinished operation messages are not logged, 1 Unfinished operation messages are logged
Default: 1
|
| TGWriteCache |
Specifies whether or not Double-Take Availability uses the intermediate cache
Values: 0 Bypass the intermediate cache and write directly to disk, 1 Do not bypass the intermediate cache
Default: 1
GUI Setting: None
|
| TGWriteFailureBeforeNotification |
Specifies the number of times an operation will be retried on the target before a notification is sent to the source to update the Target Status field of the Management Console.
Values: 0-1024
Default: 10
GUI Setting: None
If you change the setting to 0, the notification will be disabled. Changing this option will only affect how the status is changed on the Target Status field of the Management Console. To solve the underlying issue of why the operations are failing will require investigation into the Double-Take Availability log files.
|
| UpdateInterval |
Interval, in seconds, at which the Failover Control Center updates the monitored machines display
Values: 1 - 9999
Default: 1
GUI Setting: Failover Control Center, Settings, Refresh Rate
|
| UpgradeCode |
Used by the Double-Take Availability installation program to maintain the installation settings for an upgrade |
| UseChangeJournal |
Specifies if the Windows NTFS change journal is used to track file changes. If the source is rebooted, only the files identified in the change journal will be remirrored to the target. This setting helps improve mirror times.
Values: 0 Do not track file changes, 1 Track file changes and remirror only changed files on source reboot, 2 Track file changes and remirror only changed files on source reboot and auto-reconnect
Default: 1
GUI Setting: Server Properties, Setup tab, Remirror only Changed Files on Source Reboot
The corresponding GUI setting only allows off (0) and on (1) settings. Therefore, if you set UseChangeJournal to 2, the corresponding GUI setting will be disabled. The GUI setting will be reenabled when UseChangeJournal is set to 0 or 1.
|
| UseEventLog |
Specifies whether or not messages are logged to the Windows Event Viewer
Values: 0 Do not log messages to the Event Viewer, 1 Log messages to the Event Viewer
Default: 1
GUI Setting: None
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| UserIntervention |
Specifies whether or not user intervention is required to initiate a failover
Values: 0 User intervention is not required, 1 User intervention is required
Default: 1
GUI Setting: Failover Control Center, Monitor Settings, Manual Intervention
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| UseScheduledPause |
Used by Double-Take Availability for internal schedule processing. Do not modify this setting. |
| UseShareFile |
Specifies whether to create and use a share file or to use the shares that are currently stored in the target memory
Values: 0 Use the shares that are currently stored in the target memory, 1 Create and use a file containing the share information
Default: 1
GUI Setting: Failover Control Center, Monitor Settings, Use .SHR Share Mapping File
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| VerifyLogAppend |
Specifies whether the DTVerify.log file will be appended to or overwritten
Values: 0 Overwrite 1 Append
Default: 1
GUI Setting: Server Properties, Logging tab, Verification, Append
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| VerifyLogLimit |
Maximum size of the DTVerify.log file in bytes
Values: limited by available hard drive space, up to 4 GB
Default: 1048576
GUI Setting: Server Properties, Logging tab, Verification, Maximum Length
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| VerifyLogName |
Name of the verification log file
Values: any valid file name
Default: DTVerify.log
GUI Setting: Server Properties, Logging tab, Verification, Filename
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| VerifyRetryInterval |
The time, in minutes, between when one verification fails and a retry is scheduled to begin.
Values: any valid number
Default: 3
GUI Setting: None
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| VerifyRetryLimit |
The number of time a verification will be retried.
Values: any valid number
Default: 5
GUI Setting: None
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| VersionInfo |
The version of Double-Take Availability that was installed Value: determined by the version installed
Default: determined by the installation
GUI Setting: None
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| WarningPings |
This entry is no longer used. |
| WatchDogFailureScript |
Specifies the script to run if the Double-Take Availability driver were to stop running
Values: Any valid path and script file
Default: <null>
GUI Setting: None
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