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Creating an Exchange job

Use these instructions to create an Exchange job.

1. Click Get Started from the toolbar.

2. Select Double-Take Availability and click Next.

3. Select Protect files and folders, an application, or an entire Windows server and click Next.

4. Choose your source server. This is the physical or virtual server running Exchange. If your source is a cluster, select the cluster name, not the Exchange virtual server name or virtual IP address. If you are protecting Exchange 2010 with DAG, select the DAG as your source server.

   

   • Current Servers—This list contains the servers currently available in your console session. Servers that are not licensed for the workflow you have selected will be filtered out of the list. Select your source server from the list.
   • Find a New Server—If the server you need is not in the Current Servers list, click the Find a New Server heading. From here, you can specify a server along with credentials for logging in to the server. If necessary, you can click Browse to select a server from a network drill-down list.

   If you enter the source server's fully-qualified domain name, the Double-Take Console will resolve the entry to the server short name. If that short name resides in two different domains, this could result in name resolution issues. In this case, enter the IP address of the server.

   When specifying credentials for a new server, specify a user that is a member of the local Double-Take Admin and local administrator security groups. If desired, the user must also meet the following credentials requirements, however, you can specify a separate user later in the job creation process to handle the Exchange specific tasks.

   • The account must be an Exchange Full Administrator at the organizational level, as delegated via the Exchange System Manager at the user level.
   • The account must have rights to manage Exchange in order to query and modify the Exchange Active Directory objects.
   • The account must be a member of the Domain Admins group. If your security policies do not allow use of this group, see DNS and use the instructions under the Double-Take DFO utility to use a non-Domain Admins account.
   • If Exchange is on a cluster, the account must be a member of the Cluster Administrators security group on each node. Additionally, for Windows 2003 the same cluster service account should be used for both the source and target.

    

    

5. Click Next to continue.

6. Choose the type of workload that you want to protect. Under Server Workloads, in the Workload types pane, select Exchange Server. In the Workload items pane, Double-Take will automatically select the entire Exchange program and data files.

   If the workload you are looking for is not displayed, enable Show all workload types. The workload types in gray text are not available for the source server you have selected. Hover your mouse over an unavailable workload type to see a reason why this workload type is unavailable for the selected source.

   

7. If you want to select other files and folders to include in your protection, click the Replication Rules heading and expand the volumes under Folders. For example, if you need to protect data that is stored on a non-mailbox server role, for example SMTP queue data, you will need to configure protection for that data separately.

   Volumes and folders with a green highlight are included in their entirety in the protection. Volumes and folders highlighted in light yellow have individual files included in the protection. If there is no highlight, no part of the volume or folder is included in the protection. To modify the items selected, highlight a volume, folder, or file and click Add Rule. You can also enter a rule, including a wildcard specification, manually. Specify if you want to Include or Exclude the item. Also, specify if you want the rule to be recursive, which indicates the rule should automatically be applied to the subdirectories of the specified path. If you do not select Recursive, the rule will not be applied to subdirectories.

   If you need to remove a rule, highlight it in the list at the bottom and click Remove Rule. Be careful when removing rules. Double-Take may create multiple rules when you are adding directories. For example, if you add E:\Data to be included in protection, then E:\ will be excluded. If you remove the E:\ exclusion rule, then the E:\Data rule will be removed also.

   If you return to this page using the Back button in the job creation workflow, your Workload Types selection will be rebuilt, potentially overwriting any manual replication rules that you specified. If you do return to this page, confirm your Workload Types and Replication Rules are set to your desired settings before proceeding forward again.

    

8. Click Next to continue.

9. Choose your target server. This is the server that will store the replica Exchange Server from the source.

   

   • Current Servers—This list contains the servers currently available in your console session. Servers that are not licensed for the workflow you have selected and those not applicable to the workload type you have selected will be filtered out of the list. Select your target server from the list.
   • Find a New Server—If the server you need is not in the Current Servers list, click the Find a New Server heading. From here, you can specify a server along with credentials for logging in to the server. If necessary, you can click Browse to select a server from a network drill-down list.

   If you enter the target server's fully-qualified domain name, the Double-Take Console will resolve the entry to the server short name. If that short name resides in two different domains, this could result in name resolution issues. In this case, enter the IP address of the server.

   When specifying credentials for a new server, specify a user that is a member of the local Double-Take Admin and local administrator security groups. If desired, the user must also meet the following credentials requirements, however, you can specify a separate user later in the job creation process to handle the Exchange specific tasks.

   • The account must be an Exchange Full Administrator at the organizational level, as delegated via the Exchange System Manager at the user level.
   • The account must have rights to manage Exchange in order to query and modify the Exchange Active Directory objects.
   • The account must be a member of the Domain Admins group. If your security policies do not allow use of this group, see DNS and use the instructions under the Double-Take DFO utility to use a non-Domain Admins account.
   • If Exchange is on a cluster, the account must be a member of the Cluster Administrators security group on each node. Additionally, for Windows 2003 the same cluster service account should be used for both the source and target.

    

    

10. Click Next to continue.

11. You have many options available for your Exchange job. Configure those options that are applicable to your environment.

    Click a link below to see the options available for that section of the Set Options page.

    General

    

    For the Job name, specify a unique name for your job.

    Failover Monitor

    

    • Total time to failure—Specify, in hours:minutes:seconds, how long the target will keep trying to contact the source before the source is considered failed. This time is precise. If the total time has expired without a successful response from the source, this will be considered a failure.

      Consider a shorter amount of time for servers, such as a web server or order processing database, which must remain available and responsive at all times. Shorter times should be used where redundant interfaces and high-speed, reliable network links are available to prevent the false detection of failure. If the hardware does not support reliable communications, shorter times can lead to premature failover. Consider a longer amount of time for machines on slower networks or on a server that is not transaction critical. For example, failover would not be necessary in the case of a server restart.

    • Consecutive failures—Specify how many attempts the target will make to contact the source before the source is considered failed. For example, if you have this option set to 20, and your source fails to respond to the target 20 times in a row , this will be considered a failure.

    • Monitor on this interval—Specify, in hours:minutes:seconds, how long to wait between attempts to contact the source to confirm it is online. This means that after a response (success or failure) is received from the source, Double-Take will wait the specified interval time before contacting the source again. If you set the interval to 00:00:00, then a new check will be initiated immediately after the response is received.

      If you choose Total time to failure, do not specify a longer interval than failure time or your server will be considered failed during the interval period.

      If you choose Consecutive failures, your failure time is calculated by the length of time it takes your source to respond plus the interval time between each response, times the number of consecutive failures that can be allowed. That would be (response time + interval) * failure number. Keep in mind that timeouts from a failed check are included in the reponse time, so your failure time will not be precise.

    • Network monitoring—With this option, the target will monitor the source using a network ping.

      • Monitor these addresses—Select each Source IP Address that you want the target to monitor.

        If you are protecting a cluster, you are limited to the IP addresses in the cluster group that you are protecting.

         

      • Monitoring method—This option determines the type of network ping used for failover monitoring.
        • Network service—Source availability will be tested by an ICMP ping to confirm the route is active.
        • Replication service—Source availability will be tested by a UDP ping to confirm the Double-Take service is active.
        • Network and replication services—Source availability will be tested by both an ICMP ping to confirm the route is active and a UDP ping to confirm the Double-Take service is active. Both pings must fail in order to trigger a failover.
      • Failover trigger—If you are monitoring multiple IP addresses, specify when you want a failover condition to be triggered.
        • One monitored IP address fails—A failover condition will be triggered when any one of the monitored IP addresses fails. If each IP address is on a different subnet, you may want to trigger failover after one fails.
        • All monitored IP addresses fail—A failover condition will be triggered when all monitored IP addresses fail. If there are multiple, redundant paths to a server, losing one probably means an isolated network problem and you should wait for all IP addresses to fail.
    • Service monitoring—This option is only available in standalone environments. It is not available in cluster environments.With this option, the target will monitor specific services on the source by confirming that they are running. Multiple services in the list will be checked in parallel. A failover condition is met when one of the monitored services fails the check. Click Add and select the service that you want to monitor. Repeat this step for additional services that you want to monitor. If you want to remove a service from the Services to monitor list, highlight it and click Remove.
      • Attempt to restart this service after each failure—When this option is enabled, if a service fails the monitor check, Double-Take will attempt to restart it. During this restart period, Double-Take will not check the other services, to avoid any false failures while the one service is attempting to be restarted. If the service cannot be restarted, Double-Take will consider this a failure.
    • Custom script monitoring—This option is only available in standalone environments. It is not available in cluster environments. With this option, you can use your own custom script to monitor the source for a failure. You can use any standard script such as PowerShell, VB, batch files, and so on. Your script must return a code of 0 upon success. Any other code will indicate a failure condition has been met. Your script will not be interactive, so ensure that it does not require any user interaction to execute successfully.
      • Script file—Specify the full path and file name of your custom script file.
      • User name—Specify a user with privileges to execute your custom script and all commands within the script.
      • Password—Specify the password associated with the user you have entered.
      • Domain—Specify the domain, if needed.

      The network monitoring test is performed independently, while the service and custom monitoring tests are performed in parallel. Therefore, if you are using network monitoring with service and/or custom monitoring, and the network monitor fails, the service and custom monitoring will be skipped. If the network monitor is successful, service or custom monitoring will be performed. Any failure between these two tests will be considered a failure, therefore, both tests must complete and pass for the test to be considered successful.

       

    Failover Options

    

    • Wait for user to initiate failover—By default, the failover process will wait for you to initiate it, allowing you to control when failover occurs. When a failure occurs, the job will wait in Failover Condition Met for you to manually initiate the failover process. Disable this option only if you want failover to occur immediately when a failure occurs.
    • Failover hostname—This option is not used for Exchange jobs. The job will automatically handle this functionality.
    • Failback hostname—This option is not used for Exchange jobs. The job will automatically handle this functionality.
    • Active Directory Credentials—This option is not used for Exchange jobs. The job will automatically handle this functionality.

    • Scripts—You can customize failover and failback by running scripts on the source and target. Scripts may contain any valid Windows command, executable, or batch file. The scripts are processed using the same account running the Double-Take service, unless you have identified a specific account through the server's properties. See Script credentials. Examples of functions specified in scripts include stopping services on the target before failover because they may not be necessary while the target is standing in for the source, stopping services on the target that need to be restarted with the source’s machine name and/or IP address, starting services or loading applications that are in an idle, standby mode waiting for failover to occur, notifying the administrator before and after failover or failback occurs, stopping services on the target after failback because they are no longer needed, stopping services on the target that need to be restarted with the target machine’s original name and/or IP address, and so on. There are four types of failover and failback scripts.

      • Pre-failover script—This script runs on the target at the beginning of the failover process. Specify the full path and name of the script file.
      • Post-failover script—This script runs on the target at the end of the failover process. Specify the full path and name of the script file.
      • Pre-failback script —This script runs on the target at the beginning of the failback process. Specify the full path and name of the script file.
      • Post-failback script—This script runs on the target at the end of the failback process. Specify the full path and name of the script file.
      • Arguments—Specify a comma-separated list of valid arguments required to execute the script.
      • Delay until script completes—Enable this option if you want to delay the failover or failback process until the associated script has completed. If you select this option, make sure your script handles errors, otherwise the failover or failback process may never complete if the process is waiting on a script that cannot complete.

      Scripts will run but will not be displayed on the screen if the Double-Take service is not set to interact with the desktop. Enable this option through the Windows Services applet.

    Failover Identity

    

    This section is not applicable to DAG to standalone configurations.

     

    • Retain target network configuration—The target will retain all of its original IP addresses.

      • Update DNS server—Specify if you want Double-Take to update your DNS server on failover. If DNS updates are made, the DNS records will be locked during failover.

        Expand the DNS Options section to configure how the updates will be made. The source's domain, the current DNS credentials, and the DNS servers from the source's domain controller will be discovered and displayed.

        • Change—If necessary, click this button and specify a user that has privileges to access and modify DNS records. The account must be a member of the DnsAdmins group for the domain, and must have full control permissions on the source's A (host) and PTR (reverse lookup) records. These permissions are not included by default in the DnsAdmins group. You can enter a user name for a different domain by entering a fully qualified user name. The fully qualified user name must be in the format domain\username or username@domain. If you enter a non-qualified name, the selected domain will be used.
        • Remove—If there are any DNS servers in the list that you do not want to update, highlight them and click Remove.
        • Update these source DNS entries with the corresponding target IP address—For each IP address on the source, specify what address you want DNS to use after failover. For clusters, be sure and select the clustered IP address.
        • Update TTL—Specify the length of time, in seconds, for the time to live value for all modified DNS A records. Ideally, you should specify 300 seconds (5 minutes) or less.

      If you select Retain your target network configuration but do not enable Update DNS server, you will need to specify failover scripts that update your DNS server during failover, or you can update the DNS server manually after failover. This would also apply to non--Microsoft Active Directory Integrated DNS servers. You will want to keep your target network configuration but do not update DNS. In this case, you will need to specify failover scripts that update your DNS server during failover, or you can update the DNS server manually after failover.

       

    Mirror, Verify & Orphaned Files

    

    • Mirror all files—All protected files will be mirrored from the source to the target.
    • Mirror different files—Only those protected files that are different based on date and time, size, or attributes will be mirrored from the source to the target.

    • Mirror only if the file on the source is newer than the copy on the target—Only those protected files that are newer on the source are mirrored to the target.

      If you are using a database application or are protecting a domain controller, do not use this option unless you know for certain that you need it. With database applications and because domain controllers store their data in a database, it is critical that all files, not just some of the files that might be newer, get mirrored.

       

    • Use block checksum for comparisons—For those files flagged as different, the mirroring process can perform a block checksum comparison and send only those blocks that are different.

    • Enable scheduled verification—Verification is the process of confirming that the source replica data on the target is identical to the original data on the source. Verification creates a log file detailing what was verified as well as which files are not synchronized. If the data is not the same, can automatically initiate a remirror, if configured. The remirror ensures data integrity between the source and target. When this option is enabled, Double-Take will verify the source replica data on the target and generate a verification log.

      Because of the way the Windows Cache Manager handles memory, machines that are doing minimal or light processing may have file operations that remain in the cache until additional operations flush them out. This may make Double-Take files on the target appear as if they are not synchronized. When the Windows Cache Manager releases the operations in the cache on the source and target, the files will be updated on the target.

       

    • Verify on this interval—Specify the interval between verification processes.
    • Begin immediately—Select this option if you want to start the verification schedule immediately after the job is established.
    • Begin at this time—Select this option if you want to start the verification at the specified date and time.
    • Mirror files to the target server when verifying—When this option is enabled, in addition to verifying the data and generating a log, Double-Take will also mirror to the target any protected files that are different on the source.

    • Mirror only if the file on the source is newer than the copy on the target—Only those protected files that are newer on the source are mirrored to the target.

      If you are using a database application or are protecting a domain controller, do not use this option unless you know for certain that you need it. With database applications and because domain controllers store their data in a database, it is critical that all files, not just some of the files that might be newer, get mirrored.

       

    • Use block checksum for comparisons—For those files flagged as different, the mirroring process can perform a block checksum comparison and send only those blocks that are different.

    • Calculate size of protected data before mirroring—Specify if you want Double-Take to determine the mirroring percentage calculation based on the amount of data being protected. If the calculation is enabled, it is completed before the job starts mirroring, which can take a significant amount of time depending on the number of files and system performance. If your job contains a large number of files, for example, 250,000 or more, you may want to disable the calculation so that data will start being mirrored sooner. Disabling calculation will result in the mirror status not showing the percentage complete or the number of bytes remaining to be mirrored.

      The calculated amount of protected data may be slightly off if your data set contains compressed or sparse files.

       

    • Delete orphaned files—An orphaned file is a file that exists in the replica data on the target, but does not exist in the protected data on the source. This option specifies if orphaned files should be deleted on the target during a mirror, verification, or restoration. In an Exchange environment, it is important that you delete orphaned files because if you have orphaned Exchange log files on the target, it is possible that one or more Exchange database will not mount after failover.

      Orphaned file configuration is a per target configuration. All jobs to the same target will have the same orphaned file configuration.

      The orphaned file feature does not delete alternate data streams. To do this, use a full mirror, which will delete the additional stream(s) when the file is re-created.

      If delete orphaned files is enabled, carefully review any replication rules that use wildcard definitions. If you have specified wildcards to be excluded from protection, files matching those wildcards will also be excluded from orphaned file processing and will not be deleted from the target. However, if you have specified wildcards to be included in your protection, those files that fall outside the wildcard inclusion rule will be considered orphaned files and will be deleted from the target.

      If you want to move orphaned files rather than delete them, you can configure this option along with the move deleted files feature to move your orphaned files to the specified deleted files directory. See Target server properties for more information.

      During a full mirror, orphaned file processing success messages will be logged to a separate orphaned file log. This keeps the Double-Take log from being overrun with orphaned file success processing messages. Orphaned files processing statistics and any errors in orphaned file processing will still be logged to the Double-Take log, and during difference mirrors, verifications, and restorations, all orphaned file processing messages are logged to the Double-Take log. The orphaned file log is located in the Logging folder specified for the source. See Log file properties for details on the location of that folder. The orphaned log file is overwritten during each orphaned file processing during a full mirror, and the log file will be a maximum of 50 MB.

       

    Network Route

    

    This section is not applicable if your target is a cluster.

     

    • Send data to the target server using this route—By default, Double-Take will select a target route for transmissions. If desired, specify an alternate route on the target that the data will be transmitted through. This allows you to select a different route for Double-Take traffic. For example, you can separate regular network traffic and Double-Take traffic on a machine with multiple IP addresses.

      The IP address used on the source will be determined through the Windows route table.

       

    • Block target paths upon connection—You can block writing to the replica source data located on the target. This keeps the data from being changed outside of Double-Take processing. Any target paths that are blocked will be unblocked automatically during the failover process so that users can modify data after failover. During restoration, the paths are automatically blocked again. If you failover and failback without performing a restoration, the target paths will remain unblocked.
    Failover Services

    

    This section is not applicable to clustered environments.

     

    Services to stop on source and start on target during failover and start on source and stop on target during failback—Double-Take automatically determines the appropriate Exchange services to start and stop based on your Exchange version, Exchange configuration, and your operating system. If necessary, you can start and stop other services during failover and failback. Click Add to insert a service into the list or Remove to remove a service from the list. The services will be started in the order they appear and stopped in the reverse order. Highlight a service and click Move Up or Move Down to arrange the services in the desired order.

    Snapshots

    

    This section is not applicable to clustered environments.

     

    A snapshot is an image of the source replica data on the target taken at a single point in time. You can view the snapshots in VSS and recover any files or folders desired. You can also failover to a snapshot.

    Turn on Enable scheduled snapshots if you want Double-Take to take snapshots automatically at set intervals.

    • Take snapshots on this interval—Specify the interval (in days, hours, or minutes) for taking snapshots.
    • Begin immediately—Select this option if you want to start taking snapshots immediately after the protection job is established.
    • Begin at this time—Select this option if you want to start taking snapshots starting at a later date and time. Specify the date and time parameters to indicate when you want to start.

    See Managing snapshots for details on taking manual snapshots and deleting snapshots.

    You may want to set the size limit on how much space snapshots can use. See your VSS documentation for more details.

     

    Compression

    

    To help reduce the amount of bandwidth needed to transmit Double-Take data, compression allows you to compress data prior to transmitting it across the network. In a WAN environment this provides optimal use of your network resources. If compression is enabled, the data is compressed before it is transmitted from the source. When the target receives the compressed data, it decompresses it and then writes it to disk. You can set the level from Minimum to Maximum to suit your needs.

    Keep in mind that the process of compressing data impacts processor usage on the source. If you notice an impact on performance while compression is enabled in your environment, either adjust to a lower level of compression, or leave compression disabled. Use the following guidelines to determine whether you should enable compression.

    • If data is being queued on the source at any time, consider enabling compression.
    • If the server CPU utilization is averaging over 85%, be cautious about enabling compression.
    • The higher the level of compression, the higher the CPU utilization will be.
    • Do not enable compression if most of the data is inherently compressed. Many image (.jpg, .gif) and media (.wmv, .mp3, .mpg) files, for example, are already compressed. Some images files, such as .bmp and .tif, are decompressed, so enabling compression would be beneficial for those types.
    • Compression may improve performance even in high-bandwidth environments.
    • Do not enable compression in conjunction with a WAN Accelerator. Use one or the other to compress Double-Take data.

    All jobs from a single source connected to the same IP address on a target will share the same compression configuration.

     

    Bandwidth

    

    Bandwidth limitations are available to restrict the amount of network bandwidth used for Double-Take data transmissions. When a bandwidth limit is specified, Double-Take never exceeds that allotted amount. The bandwidth not in use by Double-Take is available for all other network traffic.

    All jobs from a single source connected to the same IP address on a target will share the same bandwidth configuration.

     

    • Do not limit bandwidth—Double-Take will transmit data using 100% bandwidth availability.
    • Use a fixed limit—Double-Take will transmit data using a limited, fixed bandwidth. Select a Preset bandwidth limit rate from the common bandwidth limit values. The Bandwidth field will automatically update to the bytes per second value for your selected bandwidth. This is the maximum amount of data that will be transmitted per second. If desired, modify the bandwidth using a bytes per second value. The minimum limit should be 3500 bytes per second.
    • Use scheduled limits—Double-Take will transmit data using a dynamic bandwidth based on the schedule you configure. Bandwidth will not be limited during unscheduled times.
    • New—Click New to create a new scheduled bandwidth limit. Specify the following information.
    • Daytime entry—Select this option if the start and end times of the bandwidth window occur in the same day (between 12:01 AM and midnight). The start time must occur before the end time.
    • Overnight entry—Select this option if the bandwidth window begins on one day and continues past midnight into the next day. The start time must be later than the end time, for example 6 PM to 6 AM.
    • Day—Enter the day on which the bandwidth limiting should occur. You can pick a specific day of the week, Weekdays to have the limiting occur Monday through Friday, Weekends to have the limiting occur Saturday and Sunday, or Every day to have the limiting repeat on all days of the week.
    • Start time—Enter the time to begin bandwidth limiting.
    • End time—Enter the time to end bandwidth limiting.
    • Preset bandwidth—Select a bandwidth limit rate from the common bandwidth limit values. The Bandwidth field will automatically update to the bytes per second value for your select bandwidth.
    • Bandwidth—If desired, modify the bandwidth using a bytes per second value. The minimum limit should be 3500 bytes per second.
    • Edit—Click Edit to modify an existing scheduled bandwidth limit.
    • Delete—Click Delete to remove a scheduled bandwidth limit.

    If you change your job option from Use scheduled limits to Do not limit bandwidth or Use a fixed limit, any schedule that you created will be preserved. That schedule will be reused if you change your job option back to Use scheduled limits.

    You can manually override a schedule after a job is established by selecting Other Job Options, Set Bandwidth. If you select No bandwidth limit or Fixed bandwidth limit, that manual override will be used until you go back to your schedule by selecting Other Job Options, Set Bandwidth, Scheduled bandwidth limit. For example, if your job is configured to use a daytime limit, you would be limited during the day, but not at night. But if you override that, your override setting will continue both day and night, until you go back to your schedule. See the Managing and controlling jobs section for your job type for more information on the Other Job Options.

     

    Scripts

    

    You can customize mirroring by running scripts on the target at pre-defined points in the mirroring process. Scripts may contain any valid Windows command, executable, or batch file. The scripts are processed using the same account running the Double-Take service, unless you have identified a specific account through the server's properties. See Script credentials. There are three types of mirroring scripts.

    • Mirror Start—This script starts when the target receives the first mirror operation. In the case of a difference mirror, this may be a long time after the mirror is started because the script does not start until the first different data is received on the target. If the data is synchronized and a difference mirror finds nothing to mirror, the script will not be executed. Specify the full path and name of the Script file.
    • Mirror Complete—This script starts when a mirror is completed. Because the mirror statistics may indicate a mirror is at 99-100% when it is actually still processing (for example, if files were added after the job size was calculated, if there are alternate data streams, and so on), the script will not start until all of the mirror data has been completely processed on the target. Specify the full path and name of the Script file.
    • Mirror Stop—This script starts when a mirror is stopped, which may be caused by an auto-disconnect occurring while a mirror is running, the service is shutdown while a mirror is running, or if you stop a mirror manually. Specify the full path and name of the Script file.
    • Arguments—Specify a comma-separated list of valid arguments required to execute the script.
    • Allow script to interact with desktop—Enable this option if you want the script processing to be displayed on the screen. Otherwise, the script will execute silently in the background.
    • Delay until script completes—Enable this option if you want to delay the mirroring process until the associated script has completed. If you select this option, make sure your script handles errors, otherwise the mirroring process may never complete if the process is waiting on a script that cannot complete.
    • Test—You can test your script manually by clicking Test. Your script will be executed if you test it. If necessary, manually undo any changes that you do not want on your target after testing the script.

    Mirror scripts are dependent on the target and the Target Path Mappings specified under the Network Route & Folder Selection section. If you establish mirroring scripts for one job and then establish additional jobs to the same target using the same target path mapping, the mirroring scripts will automatically be applied to those subsequent jobs. If you select a different target path mapping, the mirroring scripts will have to be reconfigured for the new job(s).

     

    Test Failover Scripts

    

    This section is not applicable to clustered environments.

     

    These scripts are like the live failover scripts, except they are only used during a test failover.

    • Post-Failover Script—This script runs on the target at the end of the failover process. Specify the full path and name of the script file.
    • Pre-Failback Script —This script runs on the target at the beginning of the failback process. Specify the full path and name of the script file.

    Scripts will run but will not be displayed on the screen if the Double-Take service is not set to interact with the desktop. Enable this option through the Windows Services applet.

    Exchange Options

    

    Click Change and specify a user that meets the following requirements.

    • The login account must be an Exchange Full Administrator at the organizational level, as delegated via the Exchange System Manager at the user level.
    • The login account must have rights to manage Exchange in order to query and modify the Exchange Active Directory objects.
    • If Exchange is on a cluster, the login account must be a member of the Cluster Administrators security group on each node. Additionally, for Windows 2003 the same cluster service account should be used for both the source and target.

12. Click Next to continue.

13. Double-Take validates that your source and target are compatible. The Summary page displays your options and validation items.

    Errors are designated by a white X inside a red circle. Warnings are designated by a black exclamation point (!) inside a yellow triangle. A successful validation is designated by a white checkmark inside a green circle. You can sort the list by the icon to see errors, warnings, or successful validations together. Click on any of the validation items to see details. You must correct any errors before you can enable protection. Depending on the error, you may be able to click Fix or Fix All and let Double-Take correct the problem for you. For those errors that Double-Take cannot correct automatically, you will need to modify the source or target to correct the error, or you can select a different target. You must revalidate the selected servers, by clicking Recheck, until the validation check passes without errors.

    Before a job is created, the results of the validation checks are logged to the Double-Take Management Service log on the target.

14. Once your servers have passed validation and you are ready to establish protection, click Finish, and you will automatically be taken to the Manage Jobs page.

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