VERITAS Volume Manager 3.5 Administrator's Guide (September 2004)

Performance Monitoring and Tuning
Performance Monitoring
Chapter 12 395
NOTE Your system may use a device name that differs from the examples. For
more information on device names, see Chapter 2, “Administering
Disks,” on page 65.
The subdisks line (beginning sd) indicates that the archive volume is on
disk disk03. To move the volume off disk03, use the following command:
# vxassist move archive !disk03 dest_disk
where dest_disk is the disk to which you want to move the volume. It is
not necessary to specify a dest_disk . If you do not specify a dest_disk ,
the volume is moved to an available disk with enough space to contain
the volume.
For example, to move the volume from disk03 to disk04, use the
following command:
# vxassist move archive !disk03 disk04
This command indicates that the volume is to be reorganized so that no
part remains on disk03.
NOTE The graphical user interface (GUI) provides an easy way to move pieces
of volumes between disks and may be preferable to using the command
line.
If two volumes (other than the root volume) on the same disk are busy,
move them so that each is on a different disk.
If one volume is particularly busy (especially if it has unusually large
average read or write times), stripe the volume (or split the volume into
multiple pieces, with each piece on a different disk). If done online,
converting a volume to use striping requires sufficient free space to store
an extra copy of the volume. If sufficient free space is not available, a
backup copy can be made instead. To convert a volume, create a striped
plex as a mirror of the volume and then remove the old plex. For
example, the following commands stripe the volume archive across disks
disk02, disk03, and disk04, and then remove the original plex
archive-01:
# vxassist mirror archive layout=stripe disk02 disk03 disk04