Supported Configurations; Local Mirror - Dual Host; Local Mirror - Dual Host (Full Performance, Zero Downtime Backup) - HP B6960-96035 Concepts Manual

Supported configurations

Local mirror - dual host

This solution uses a local mirroring functionality such as Business Copy XP. Both disks
are in the same disk array, which means the I/O infrastructure of the RAID system is
actually shared between the application client (or host) and the backup client.
As the application client and the backup client are two physically different systems,
they can use their own resources (I/O channels, CPUs, memory, etc.) for their
dedicated activities, such as backup, without interfering with each other. In this way,
the backup performance does not impact the database performance.
Figure 79 Local mirror - dual host (full performance, Zero Downtime
Backup)
The Data Protector split mirror backup integration allows automatic handling of mirror
status as well as tight integration with applications such as SAP R/3 and Oracle (to
ensure data consistency and application/database-aware backups). Only if the
application/database is aware of a backup can a secure operation be guaranteed
and native application tools be used for restore. The impact of a backup on the
application is reduced to the time needed to perform a split of the mirror and put the
Concepts guide 269