VERITAS Volume Manager 3.1 Administrator's Guide

Recovery
Initializing RAID-5 Volumes
Chapter 8368
Initializing RAID-5 Volumes
NOTE You may need an additional license to use this feature.
A RAID-5 volume must be initialized if it was created by the vxmake
command and has not yet been initialized or if it has been set to an
uninitialized state. If RAID-5 is created using the vxassist command
with default options, then the volume is initialized by the vxassist
command.
To initialize a RAID-5 volume, use one of the following commands:
# vxvol init zero volume_name
or
# vxvol start volume_name
The vxvol init zero command writes zeroes to any RAID-5 log plexes
and to the entire length of the volume. It then leaves the volume in the
ACTIVE state.
The vxvol start command recovers parity by XORing corresponding
data stripe units in all other columns. Although it is slower than a vxvol
init zero operation, the vxvol start command makes the RAID-5
volume immediately available.