Veritas Storage Foundation 5.1 SP1: Storage and Availability Management for Oracle (5900-1504, April 2011)

Selecting one or two hosts (off-host)
If maintaining the performance of your primary database is critical, you can
offload processing of the snapshots to a secondary host. For off-host processing,
storage must be shared between the primary and secondary hosts.
If cost savings is most important, you can choose to do the processing on the same
host as the primary database to save on hardware costs.
Preparing hosts and storage for Database FlashSnap
Review the following details to prepare the hosts and storage for Database
FlashSnap.
Setting up hosts
Database FlashSnap requires sufficient disk space in the disk group to add a mirror
of equal size of the existing database.
Setting up a storage configuration for Database FlashSnap operations is a system
administrator’s responsibility and requires superuser (root) privileges. Database
FlashSnap utilities do not address setting up an appropriate storage configuration.
Same-node configuration
Figure 10-1 shows the suggested arrangement for implementing Database
FlashSnap solutions on the primary host to avoid disk contention.
Using Database FlashSnap for backup and off-host processing
Preparing hosts and storage for Database FlashSnap
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