When to Migrate a Backup Set
Creation Date: October 31, 2007
Revision Date: January 10, 2013
Product: DS‑Client
Summary
DS-Client stores information about the source machine that is being backed up with a specific backup set: machine name, machine IP address, operating system version, etc. Because of these specifications, you may need to “migrate” a backup set to respecify those settings if they are changed on the source. The following scenarios require migration.
See Also
Scenario # 1: Source computer’s operating system was upgraded
[This scenario applies to Windows DS-Client only.]
If the operating system of the source machine (for the backup data) was changed, DS-Client will fail to perform the backup activity with the following (or similar) message:
Server changed from Windows 2003 to Windows 7 / 2008 R2. Please migrate the backup set or create a new one for this version.
To continue to backup with the same backup set, you must migrate the backup set, and re-select the same computer (with the upgraded operating system). Otherwise, you can create a new backup set and start backing up the data again.
IMPORTANT NOTES
• Not all operating system upgrades will allow a backup set migration.
• If you perform a Bare Metal Restore from a migrated backup set, you must make sure that you only restore operating system files from the same backup session (if applicable). Otherwise, you may restore a combination of incompatible files from different versions of the operating system.
Scenario # 2: Source computer’s Machine name or IP address was changed
If the name or IP address of the source computer is changed, DS-Client will fail to back up with the message:
In Windows: The network name was not found.
OR
In Linux: No route to host.
Any backup sets created with the previous machine name or IP address must be migrated. Otherwise, you can create new backup sets and start again.
Scenario # 3: Source data has been moved to a different machine
If the actual data has been moved from one server to another server, you can migrate the backup set, specify the new machine information and continue backing up with the same backup set. However, you must pay attention to the following items:
• If you move data from one server to another and you keep the same path format for that data, then DS-Client will backup incremental data. For example: if data resides on e$\data and you moved it to e$\data or c$\data on the new server, then DS-Client will process incremental backups for those files.
• If you move data from one server to another and you do not keep the same path format for that data, then DS-Client must perform an initial backup (which will take longer). For example: if data resides in e$\data and you move it to e$\newlocation\data or c$\destination\newlocation\data on the new server, then DS-Client will process new masters for the files found in the new location.
Scenario # 4: Orphaned backup set was recovered by the DS-Client from the DS-System