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

■ Storage configuration
■ Scheduled tasks
■ Storage statistics
Storage Foundation for Databases (SFDB) tools best practices in a VVR
replication environment
The typical replication environment for Storage Foundation Enterprise products
includes:
■ The volume and volumeset (vset) configuration parameters such as size and
the number of volumes should match between primary and remote DR site.
■ The number of mirrors for a given volume, plex names, volume names,
sub-disks, stripe-width may differ between primary and remote DR site. Hence
volume snapshots taken on the primary won’t be available on the secondary
site.
■ VVR replicates all the data in the volume. This means all the VxFS data and
metadata, inclusive of SmartTier policy and files system checkpoint data, are
replicated.
■ VVR does not replicate volume tags. Enforcing previously existing SmartTier
policies will work on the secondary site as it is, but modifying and defining
new policies is not supported on the secondary site.
■ VVR maintains write-order. Applications such as Oracle can be brought up at
the remote site using proper recovery procedures.
■ When active replication is going on, the volumes at remote site are not open
for applications. This means the file system is not mounted at remote site.
■ When we want to switch over the application from primary to remote, we need
to stop the replication, mount the filesystem and start the application.
Using ODM, Cached ODM, Quick IO, and Cached IO for
the Oracle database in a VVR environment
Fast IO methods such as ODM, Cached ODM, Quick IO and Cached Quick IO are
used for better application performance.
When using SFDB tools in a global environment replicated by VVR:
■ Using ODM and Quick IO for Oracle at the remote site does not require
replicating the SFDB repository and hence there is no need to replicate the
repository.
283Deploying Storage Foundation for Databases (SFDB) tools in a replicated environment
Using ODM, Cached ODM, Quick IO, and Cached IO for the Oracle database in a VVR environment