The following sections provide examples of configurations.
These examples can be used when planning to set up backup and recovery
solutions.
- Production application data are on standard volumes. Keep 14 snapshot
backup versions. Use minimum storage space for snapshot backup versions.
A full physical copy is not required. Perform two VSS backups per
day.
- SVC and Storwize® V7000
settings
- Create 14 SE target volumes for each source volume to be protected.
Enable autoexpand for the SE target volumes. Add the SE target volumes
to the VSS free pool.
- VSS Provider settings
- Set background copy rate equal to 0.
- Tivoli® Storage FlashCopy® Manager settings
- Set the policy to retain 14 local backup versions. Schedule snapshot
backups as required by using backup destination equal to local.
After 14 VSS backups are completed, the 15th VSS backup
causes the oldest backup to be deleted and reuses that target set.- Production application data are on standard volumes. Keep one
snapshot backup version. Use minimum storage space for snapshot backup
versions. A full physical copy is not required. Perform one VSS backup
per day and also send the backup to Tivoli Storage
Manager.
- SVC and Storwize V7000
settings
- Create two SE target volumes for each source volume to be protected.
Enable autoexpand for the SE target volumes. Add the SE target volumes
to the VSS free pool.
- VSS Provider settings
- Set background copy rate equal to 0.
- Tivoli Storage FlashCopy Manager settings
- Set the policy to retain two local backup versions. Schedule snapshot
backups as required by using backup destination equal to both.
Set the policy for local snapshot backups to retain N+1 backup
versions so that N snapshot backups are available
for restore. Otherwise, a local backup version might not be available
if a VSS backup fails after the prior backup was deleted. - Production application data are on standard volumes. Keep one
snapshot backup version. A full physical copy is required. Minimize
space usage of background copies. Perform one VSS backup per day
and send the backup to Tivoli Storage
Manager.
- SVC and Storwize V7000
settings
- Create one standard target volume for each source volume to be
protected. Add standard target volumes to the VSS free pool.
- VSS Provider settings
- Use the default background copy rate (50).
Configure to use incremental FlashCopy.
- Tivoli Storage FlashCopy Manager settings
- Set the policy to retain one local backup version. Schedule snapshot
backups as required by using backup destination equal to both.
When you use incremental FlashCopy, the VSS provider
does not delete the single snapshot target set even though FlashCopy Manager software
deletes the prior VSS snapshot before it creates a new one.- Production application data are on standard volumes. Keep two
snapshot backup versions. Full physical copies are required for local
backup versions. Perform VSS backups every 12 hours with one backup
daily sent to Tivoli Storage
Manager.
- SVC and Storwize V7000
settings
- Create three standard target volumes for each source volume to
be protected. Add standard target volumes to the VSS free pool.
- VSS Provider settings
- Use default background copy rate (50).
- Tivoli Storage FlashCopy Manager settings
- Set the policy to retain three local backup versions. Schedule
VSS backups as follows: backup destination equal to local at 11:00,
backup destination equal to both at 23:00.
Set the policy for local snapshot backups to retain N+1 backup
versions so that N snapshot backups are available
for restore. - Production application data are on standard volumes. Keep four
snapshot backup versions. Use minimum storage space for snapshot backup
versions. A full physical copy is not required. Perform VSS backups
every six hours with one backup daily sent to Tivoli Storage
Manager.
- SVC and Storwize V7000
settings
- Create five SE target volumes for each source volume to be protected.
Enable autoexpand for the SE target volumes. Add SE target volumes
to the VSS free
pool.
- VSS Provider settings
- Set background copy rate equal to 0.
- Tivoli Storage FlashCopy Manager settings
- Set the policy for local snapshot backups to retain five local
backup versions. Schedule VSS backups as follows:
backup destination equal to local at 06:00, 12:00,
and 18:00, backup destination equal to both at 00:00.
- Set policy to retain N+1 backup
versions so that N snapshot backups are available for restore- Production application data are on SE volumes. Keep two snapshot
backup versions. A full physical copy is required for local backup
versions. Perform VSS backups every six hours with one backup daily
sent to Tivoli Storage
Manager.
- SVC and Storwize V7000
settings
- Create three SE target volumes for each source volume to be protected.
Allocate the same percentage of real storage as for source volumes.
Add SE target volumes to the VSS free pool.
- VSS Provider settings
- Use default background copy rate 50.
- Tivoli Storage FlashCopy Manager settings
- Set the policy to retain three local backup versions. Schedule
VSS backups as follows: backup destination equal to local at 06:00, 12:00,
and 18:00, backup destination equal to both at 00:00.
Set the policy for local snapshot backups to retain N+1 backup
versions so that N snapshot backups are available
for restore. This setting allows thin provisioning for both source
and target volumes and allows them to grow together.