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

Converting a Veritas File System (VxFS) to a VxFS multi-volume file
system
To convert your existing VxFS file system to a VxFS multi-volume file system,
you must convert a single volume to a volume set.
Converting a single volume to a volume set
When you convert to a volume set using the dbdst_convert command, the original
volume will be renamed to a new volume name. The mount device name will
become the new volume set name. Creating the new volume set name with the
mount device name nullifies the need to rename the mount device in various
locations.
Before converting to a volume set, make sure the following conditions have been
met:
■ The Oracle database must not be active.
■ Create at least one additional volume.
■ You must unmount the source filesystem.
Hence the database must be shutdown.
Prerequisites
■ You must convert the single-volume file
system on which you plan to implement
SmartTier for Oracle.
■ The file system has to be unmounted when
you run the dbdst_convert command.
■ If the file system has n volumes, volumes 1
through n–1 will be placed in the storage class
"PRIMARY" and volume n will be placed in the
storage class "SECONDARY."
■ The volumes specified when running the
conversion must be in the same disk group as
the mount device.
■ The file system must be unmounted on all
nodes.
Usage Notes
To convert a mount device from a single volume device to a volume set
1
Use the dbdst_convert command as follows:
$ /opt/VRTS/bin/dbdst_convert -S $ORACLE_SID -M mount_device -v \
volume_name,volume_name
2
Bring the database objects online.
251Configuring and administering SmartTier
Configuring SmartTier for Oracle