Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

■ Veritas Storage Foundation for Oracle only
supports single disk groups.
■ Veritas Storage Foundation for Oracle RAC
supports shared disk groups. If you are in
an Oracle RAC environment:
■ Create disk groups on the shared disks
from the master node. To determine if a
node is a master or slave, run the
following command:
vxdctl -c mode
■ RAID-5 volumes are not supported for
sharing in a cluster.
■ New disks must be placed under VxVM
control and then added to a dynamic disk
group before they can be used for volumes.
■ When you place a disk under VxVM control,
the disk is initialized. Initialization destroys
any existing data on the disk.
■ For information on the vxdg command, see
the vxdg(1M) manual page.
Usage notes
To create a new disk group
◆
Use the vxdg command as follows:
# /opt/VRTS/bin/vxdg init disk_group [disk_name=disk_device]
The following is an example of creating a disk group using the vxdg command:
To create a disk group named PRODdg on a raw disk partition c1t2d0, where the
disk name PRODdg01 references the disk within the disk group:
# /opt/VRTS/bin/vxdg init PRODdg PRODdg01=c1t2d0
49Setting up databases
Creating a disk group