VERITAS Volume Manager 4.1 Administrator's Guide

Administering Hot-Relocation
How Hot-Relocation works
Chapter 9332
# vxrecover -b home src
This starts recovery of the failed plexes in the background (the command
prompt reappears before the operation completes). If an error message
appears later, or if the plexes become detached again and there are no
obvious cabling failures, replace the disk (see “Removing and Replacing
Disks” on page 97).
Complete Disk Failure Mail Messages
If a disk fails completely and hot-relocation is enabled, the mail message
lists the disk that failed and all plexes that use the disk. For example,
you can receive mail as shown in this example display:
To: root
Subject: Volume Manager failures on host teal
Failures have been detected by the VERITAS Volume Manager:
failed disks:
disk02
failed plexes:
home-02
src-02
mkting-01
failing disks:
disk02
This message shows that disk02 was detached by a failure. When a disk
is detached, I/O cannot get to that disk. The plexes home-02, src-02,
and mkting-01 were also detached (probably because of the failure of the
disk).
As described in “Partial Disk Failure Mail Messages” on page 331, the
problem can be a cabling error. If the problem is not a cabling error,
replace the disk (see “Removing and Replacing Disks” on page 97).
How Space is Chosen for Relocation
A spare disk must be initialized and placed in a disk group as a spare
before it can be used for replacement purposes. If no disks have been
designated as spares when a failure occurs, VxVM automatically uses