Backing up with RVA storage control or Enterprise Storage Server

You can use the IBM® RAMAC Virtual Array (RVA) storage control with the peer-to-peer remote copy (PPRC) function or Enterprise Storage Server® to recover Db2 subsystems at a remote site in the event of a disaster at the local site. Both of these methods provide a faster way to recover subsystems.

About this task

You can use RVAs, PPRC, and the RVA fast copy function, SnapShot, to create entire Db2 subsystem backups to a point in time on a hot stand-by remote site without interruption of any application process. Another option is to use the Enterprise Storage Server FlashCopy® function to create point-in-time backups of entire Db2 subsystems.

Using RVA SnapShot or Enterprise Storage Server FlashCopy for a Db2 backup requires a method of suspending all update activity for a Db2 subsystem. You suspend update activity to allow a remote copy of the entire subsystem to be made without quiescing the update activity at the primary site. Use the SUSPEND option on the SET LOG command to suspend all logging activity at the primary site, which also prevents any database updates.

After the remote copy is created, use the RESUME option on the SET LOG command to return to normal logging activities.