Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

To create a volume

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Use the vxassist command as follows:

# /opt/VRTS/bin/vxassist -g disk_group make volume_name \

size disk_name

The following is an example of creating a volume using the vxassist

command:

To create a 1 GB mirrored volume called db01 on the PRODdg disk group:

# /opt/VRTS/bin/vxassist -g PRODdg make db01 1g PRODdg01

Creating a volume set

Volume Sets enable the use of the Multi-Volume Support feature with Veritas File

System (VxFS). It is also possible to use the Veritas Enterprise Administrator

(VEA) to create and administer volumes sets. For more information, see the VEA

online help.

Before creating a volume set, make sure the following conditions are met:

■ Before creating a volume set, you must have at least one volume

created.

See “Creating a volume ” on page 53.

■ A maximum of 256 volumes may be configured in a volume set.

■ Only Veritas File System is supported on a volume set.

■ The first volume in a volume set must be larger than 20MB.

■ Raw I/O from and to a volume set is not supported.

■ Volume sets can be used instead of volumes with the following

vxsnap operations on instant snapshots: addmir, dis, make,

prepare, reattach, refresh, restore, rmmir, split,

syncpause, syncresume, syncstart, syncstop, syncwait,

and unprepare. The third-mirror break-off usage model for

full-sized instant snapshots is supported for volume sets provided

that sufficient plexes exist for each volume in the volume set.

See the Veritas Volume Manager Administrator's Guide.

■ Most VxVM commands require superuser or equivalent privileges.

■ For details regarding usage of the vxvset command, see the

vxvset(1M) manual page.

Usage notes

To create a volume set for use by Veritas file system (VxFS)

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Use the following command:

Setting up databases

Creating a volume set