Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

Checking for initialized VM disks that are not in a disk group
(vxse_disk)
To find out whether there are any initialized disks that are not a part of any disk
group, run rule vxse_disk. This prints out a list of disks, indicating whether they
are part of a disk group or unassociated.
See “Adding a disk to a disk group” on page 200.
Checking volume redundancy (vxse_redundancy)
To check whether a volume is redundant, run rule vxse_redundancy.
This rule displays a list of volumes together with the number of mirrors that are
associated with each volume. If vxse_redundancy shows that a volume does not
have an associated mirror, your data is at risk in the event of a disk failure, and
you should rectify the situation by creating a mirror for the volume.
See “Adding a mirror to a volume ” on page 315.
Checking states of plexes and volumes (vxse_volplex)
To check whether your disk groups contain unused objects (such as plexes and
volumes), run rule vxse_volplex. In particular, this rule notifies you if any of the
following conditions exist:
■ disabled plexes
■ detached plexes
■ stopped volumes
■ disabled volumes
■ disabled logs
■ failed plexes
■ volumes needing recovery
See “Reattaching plexes” on page 268.
See “Starting a volume” on page 314.
See the Veritas Volume Manager Troubleshooting Guide.
Disk striping
Striping enables you to enhance your system’s performance. Several rules enable
you to monitor important parameters such as the number of columns in a stripe
plex or RAID-5 plex, and the stripe unit size of the columns.
513Using Storage Expert
Identifying configuration problems using Storage Expert