VERITAS Volume Manager 3.5 User's Guide - VERITAS Enterprise Administrator (June 2002)
Stopping and Restarting a Volume
100 VERITAS Volume Manager User’s Guide - VEA
Stopping and Restarting a Volume
The Stop Volume procedure disables a volume. When a volume is stopped, it is not
available for use until it is restarted (refer to “Recovering a Volume” on page 107).
Stopping a volume is a safe way of temporarily preventing access to a volume.
▼ To stop a volume
1. Select the volume to be stopped.
2. Choose Actions > Stop Volume.
3. In reply to the message “Are you sure you want to stop the volume ...,” click OK. The
volume state changes to
STOPPED.
Using the Volume Snapshot Feature
The snapshot feature can be used to take a snapshot of a mirrored or an unmirrored
volume, but snapshot is not supported for RAID-5 volumes.
Note To take a snapshot of a volume, you must have an empty dynamic disk in the
volume’s disk group.
The snapshot feature enables quick and efficient online backup of volumes, with
minimum disruption to the user. Snapshot automatically enables FastResync (FR) and
creates a snapshot image of a volume, which can be detached from the volume. The
detached snapshot image can be used for backup, or other purposes, while the original
volume remains in service. The snapshot can then be quickly reattached and
resynchronized with the volume, through the FR reconnection capability. The snapshot
volume can also be permanently disconnected from the original volume.
You can attach more than one snapshot plex to a volume, by issuing successive snapstart
commands on the volume. This enables you to take multiple snapshots of a single
volume.
You can attach a snapshot to either the original volume or the snapshot volume.
The following five snapshot commands are supported by VxVM, and are accessed
through the Volume context menu:
Note:
A volume cannot be stopped if it is in use (open) or it has a mounted file system.