468 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
Use case
Users want a copy of the volume that they can modify without affecting the original volume. 
After the clone is established, there is no expectation that it is refreshed or that there is any 
other need to reference the original production data again. If the source is thin-provisioned, 
the target is thin-provisioned for the auto-create target.
Backup
The backup preset creates an incremental point-in-time replica of the production data. After 
the copy completes, the backup view can be refreshed from the production data, with minimal 
copying of data from the production volume to the backup volume.
Backup uses the following preset parameters:
/SM590000Background Copy rate: 50
/SM590000Incremental: Yes
/SM590000Delete after completion: No
/SM590000Cleaning rate: 50
/SM590000Primary copy source pool: Target pool
Use case
The user wants to create a copy of the volume that can be used as a backup if the source 
becomes unavailable, such as due to loss of the underlying physical controller. The user 
plans to periodically update the secondary copy, and does not want to suffer from the 
resource demands of creating a new copy each time. Incremental FlashCopy times are faster 
than full copy, which helps to reduce the window where the new backup is not yet fully 
effective. If the source is thin-provisioned, the target is also thin-provisioned in this option for 
the auto-create target.
Another use case, which is not supported by the name, is to create and maintain (periodically 
refresh) an independent image that can be subjected to intensive I/O (for example, data 
mining) without affecting the source volume’s performance.
Note: IBM Spectrum Virtualize in general and FlashCopy in particular are not backup 
solutions on their own. FlashCopy backup preset, for example, does not schedule a regular 
copy of your volumes. It over-writes the mapping target and does not make a copy of it 
before starting a new “backup” operation. It is the user’s responsibility to handle the target 
volumes (for example, saving them to tapes) and the scheduling of the FlashCopy 
operations.