Veritas Storage Foundation for Oracle 5.0 Administrator's Guide, HP-UX 11i v3, Second Edition, December 2008

Converting a VxFS file system to a VxFS multi-volume file system for
Database Dynamic Storage Tiering using dbdst_convert
To convert your existing VxFS file system to a VxFS multi-volume file system,
you must convert 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.
Prerequisites
■ You must convert the single-volume file system on which you plan
to implement Database Dynamic Storage Tiering.
■ The file system can be mounted or 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.
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 database objects online.
For example, to convert a volume-based oradata file system to a Database Dynamic
Storage Tiering-ready volume set file system on mount device
/dev/vx/dsk/oradg/oradata, use the dbdst_convert command as follows:
$ /opt/VRTS/bin/dbdst_convert -S PROD -M /dev/vx/dsk/oradg/oradata -v \
new_vol1,new_vol2
After conversion, you will have a volume set named oradata containing three
volumes (oradata_b4vset, new_vol1, and new_vol2). The file system will have two
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