An example of how to define a daily incremental
forever incremental backup of the VMs.
About this task
Scheduling daily incremental forever backups ensures that
there are frequent backups of the VMs and reduces the size of each
backup.
Procedure
- From the VMware guests, update the Tivoli® Storage
Manager client backup-archive
client options file:
Specify these options in the dsm.opt options
file.
Specify these options in the dsm.sys file,
in the stanza for the data mover node.
- Enable compression by adding the following option: compression
yes.
Tip: You can only enable compression
if you are using client deduplication and if deduplication has been
enabled for the storage pool.
- Enable deduplication by adding the following option: deduplication
yes.
- Modify the trigger values for megablock
refreshes by adding one of the following options:
mbobjrefreshthresh
or
mbpctrefreshthresh
Ensure that you specify the appropriate values
for your environment.
- Define an incremental forever incremental backup for each
of the VMware guests.
Results
The blocks that changed since the previous backup (full or
incremental) are now backed up. The most recent incremental is appended
to the previous backup. If a full backup does not exist for the VMs,
a full backup is performed. Incremental forever incremental backups
are run according to schedule repetition.