VERITAS Volume Manager 3.1 Reference Guide

Chapter 2 99
Error Messages
Kernel Error Messages
the system is restarted. To recover the DRL capability, a new DRL log
should be added to the volume using the vxassist addlog command.
Read error on mirror of volume
vxvm:vxio:WARNING:
read error on mirror plex of volume volume offset offset
length length
• Description
An error was detected while reading a mirror. This error may lead to
further action shown by later error messages.
• Action
If the volume is mirrored, no action is necessary at this time since the
alternate mirror’s contents will be written to the failing mirror; this is
often sufficient to correct media failures. If this error occurs often but
never leads to a plex detach, there may be a marginal region on the
disk at the position shown. It may eventually be necessary to remove
data from this disk (see the vxevac(1M) manual page) and then to
reformat the drive. In the unmirrored case, this message indicates
that some data could not be read. The file system or other application
reading the data may report an additional error, but in either event,
data has been lost. The volume can be partially salvaged and moved
to another location if desired.
Write error on mirror of volume offset length
vxvm:vxio:WARNING: write error on mirror plex of volume
volume
offset offset length length
• Description
An error was detected while writing a mirror. This error will
generally be followed by a detach message, unless the volume is
un-mirrored.
• Action
The disk reporting the error is failing to correctly store written data.
If the volume is not mirrored, consider removing the data and
reformatting the disk. If the volume is mirrored, it will become
detached and you should consider replacing or reformatting the disk.