VERITAS Volume Manager 3.1 Administrator's Guide

Initialization and Setup
System Setup Guidelines
Chapter 2 79
the vxassist command is recommended.
• The log subdisk should not be placed on a heavily-used disk, if
possible.
• Persistent (non-volatile) storage disks must be used for log subdisks.
Mirroring and Striping Guidelines
NOTE You may need an additional license to use this feature.
Follow these general guidelines when using mirroring and striping
together. For more information, see “Mirroring Plus Striping (RAID-1 +
RAID-0)”.
• Make sure that there are enough disks available for the striped and
mirrored configuration. At least two disks are required for the striped
plex and one or more additional disks are needed for the mirror.
• Never place subdisks from one plex on the same physical disk as
subdisks from the other plex. Follow the striping guidelines described
in “Striping Guidelines”.
• Follow the mirroring guidelines described in “Mirroring Guidelines”.
Striping and Mirroring Guidelines
NOTE You may need an additional license to use this feature.
Follow these general guidelines when using striping and mirroring
together. For more information, see “Mirroring Plus Striping (RAID-1 +
RAID-0)”.
• Make sure that there are enough disks available for the striped and
mirrored configuration. At least two disks are required for the striped
plex and one or more additional disks are needed for the mirror.
• Never place subdisks from one plex on the same physical disk as
subdisks from the other plex. Follow the striping guidelines described
in “Striping Guidelines”.