VERITAS Volume Manager 4.1 Troubleshooting Guide

Error Messages
Understanding Messages
Chapter 6 75
• Description: A subdisk was detached from a RAID-5 volume because of the failure of a
disk or an uncorrectable error occurring on that disk.
• Action: Check for other console error messages indicating the cause of the failure. Replace
a failed disk as soon as possible.
V-5-0-243
VxVM vxio WARNING V-5-0-243 Overlapping mirror plex detached from volume volume
• Description: An error has occurred on the last complete plex in a mirrored volume. Any
sparse mirrors that map the failing region are detached so that they cannot be accessed to
satisfy that failed region inconsistently.
• Action: The message indicates that some data in the failing region may no longer be
stored redundantly.
V-5-0-244
VxVM vxdmp NOTICE V-5-0-244 Path failure on major/minor
• Description: A path under the control of the DMP driver failed. The device major and
minor numbers of the failed device is supplied in the message.
• Action: None.
V-5-0-249
VxVM vxio WARNING V-5-0-249 RAID-5 volume entering degraded mode operation
• Description: An uncorrectable error has forced a subdisk to detach. At this point, not all
data disks exist to provide the data upon request. Instead, parity regions are used to
regenerate the data for each stripe in the array. Consequently, access takes longer and
involves reading from all drives in the stripe.
• Action: Check for other console error messages that indicate the cause of the failure.
Replace any failed disks as soon as possible.
V-5-0-251
VxVM vxio WARNING V-5-0-251 read error on object object of mirror plex in volume
volume (start offset length length)
• Description: An error was detected while reading from a mirror. This error may lead to
further action shown by later error messages.