Configure CDR to Replicate Application Data
Change Account for Accessing Application Servers/Filers (CDR on Windows only)
Using ContinuousDataReplicator with Microsoft Exchange
Using ContinuousDataReplicator with Microsoft SQL Server
Using ContinuousDataReplicator with Oracle
Related Topics:
Required Capability: Capabilities and Permitted Actions
To configure CDR to replicate application data:
For a clustered Exchange Server, if you are not using VSS to perform an online quiesce, sufficient permissions are required in order to be able to perform an offline quiesce; in such cases, ensure that the User Name specified has Exchange Administrator rights.
To create a Replication Pair for application data, see Add or Edit a Replication Pair. |
Required Capability: See Capabilities and Permitted Actions
To change most Agent user account for accessing an application server or filer:
To change a Quick Recovery Agent user account for accessing an application server or filer:
When configuring the Exchange server(s) for the Quick Recovery Agent on a cluster, be sure to enter the Exchange server name into the Exchange Server Name field of the Change User Account dialog box. If you do not enter the server name, the agent may not be able to detect the Exchange Server.
To change a ContinuousDataReplicator user account (Windows only) for accessing an application server:
The following section provides the steps required to use CDR for data replication and recovery for Microsoft Exchange data based on a single source and single destination. If your environment uses a different scenario, adjust your steps accordingly.
Required Capability: Capabilities and Permitted Actions
To use CDR to replicate Microsoft Exchange data and create Consistent Recovery Points:
Additional Recommendations
When using QSnap on a source computer it is recommended that you also see Space Check for the Quick Recovery and ContinuousDataReplicator Agents and configure the Disk Space Low alert to provide warning that the source computer is running out of disk space, which will ultimately cause replication activity to be System Aborted.
To perform backups of Recovery Points, you must also install the Windows File System iDataAgent on both the source and destination computers.
Exchange data is restored at the Storage Group level. While you can restore Exchange data from a Recovery Point, a backup of a Recovery Point, or the Live Copy, these methods will not ensure consistency of the application data; only a restore from a Consistent Recovery Point, or a backup of one, will ensure consistency of application data. Copyback is recommended as the primary method of moving the replicated data back to the production Exchange Server, in addition to restoring a backup of a Consistent Recovery Point where that is appropriate. Exchange circular logging can be either enabled or disabled, with no impact on the Copyback operation. To ensure application integrity, you must use Add App to create your Replication Pairs. (Refer to Add or Edit a Replication Pair and Application Integration.) Add App discovers the location of the Exchange .chk file and tmp.edb file, which means the Exchange .chk file will not have to be deleted before performing the Copyback operation, since it is restores from the same point-in-time as the database and log files.
For step-by-step instructions, see Copy Back Exchange Data from a Consistent Recovery Point.
Additional Recommendations
The following section provides the steps required to use CDR for data replication and recovery of Microsoft SQL Server data based on a single source and single destination. If your environment uses a different scenario, adjust your steps accordingly.
Required Capability: Capabilities and Permitted Actions
To use CDR to replicate Microsoft SQL Server data and create Consistent Recovery Points:
Additional Recommendations
It is also recommended that you also see Space Check for the Quick Recovery and ContinuousDataReplicator Agents and configure the Disk Space Low alert to provide warning that the source computer is running out of disk space, which will ultimately cause replication activity to be System Aborted.
To perform backups of Recovery Points, you must also install the Windows File System iDataAgent on both the source and destination computers.
SQL data is restored at the database level. While you can restore SQL data from a Recovery Point, a backup of a Recovery Point, or the Live Copy, these methods will not ensure consistency of the application data; only a restore from a Consistent Recovery Point, or a backup of one, will ensure consistency of application data. Copyback is recommended as the primary method of moving the replicated data back to the production SQL Server, in addition to restoring a backup of a Consistent Recovery Point where that is appropriate. To ensure application integrity, you must use Add App to create your Replication Pairs. (Refer to Add or Edit a Replication Pair and Application Integration.) Add App discovers the location of, not only user-defined databases (.mdf, .ndf, .ldf) but also any system databases on the client, which you can select for data replication.
For step-by-step instructions, see Copy Back SQL Data from a Consistent Recovery Point.
Additional Recommendations
The following section provides the steps required to use CDR for data replication and recovery of Oracle data based on a single source and single destination. If your environment uses a different scenario, adjust your steps accordingly.
Required Capability: Capabilities and Permitted Actions
To use CDR to replicate Oracle data and create Consistent Recovery Points:
ALTER SYSTEM SET LOG_ARCHIVE_DEST_10 = 'LOCATION=F:\ORALOG1';
If Replications Pairs for Oracle log and database replication are configured to use the same destination volume, the actual number of Recovery Points retained will be the number specified in Maximum Number of Recovery Points divided by two, because separate snapshots will be created for the logs and the database. For example, if you have specified 10 as the maximum number of Recovery Points, but use the same destination volume for the logs and database, only 5 Recovery Points will be retained, with 2 snapshots in each.
Additional Recommendations
It is also recommended that you also see Space Check for the Quick Recovery and ContinuousDataReplicator Agents and configure the Disk Space Low alert to provide warning that the source computer is running out of disk space, which will ultimately cause replication activity to be System Aborted.
To perform backups of Recovery Points, you must also install either the Windows File System iDataAgent on both the source and destination computers, or the Unix File System iDataAgent on both the source and destination computers. You cannot replicate Windows data to a UNIX computer, nor the converse.
Oracle data is restored at the database level. While you can restore Oracle data from a Recovery Point, a backup of a Recovery Point, or the Live Copy, these methods will not ensure consistency of the application data; only a restore from a Consistent Recovery Point, or a backup of one, will ensure consistency of application data. A Consistent Recovery Point is recommended as the source when moving replicated data back to the production Oracle server. To ensure application integrity, you must use Add App to create your Replication Pairs. (Refer to Add or Edit a Replication Pair and Application Integration.) Add App discovers the location of all user-defined and system databases on the client, which you can select for data replication.
For step-by-step instructions, see Copy Back Oracle Data from a Consistent Recovery Point.
For Unix, sparse files attributes are not retained during Copyback, neither from a Live Copy nor a Recovery Point; the files assume the attributes of regular files on the recovery host. |
Additional Recommendations