Disk Group fails to import and multiple entries for each disk appear in "vxdisk list" output.
Article ID: 100027365
Updated On:
Description
Error Message
No errors are indicated besides the error indicating Disk Group failed to import.
# vxdg import (disk_group_name)
VxVM vxdg ERROR V-5-1-10978 Disk group (disk_group_name): import failed:
No valid disk found containing disk group
Cause
The /etc/vx/disk.info file has invalid / incorrect content for some dmpnodes.
Example entries similar to the following exist in the file:
INVALID c4t50000123456DCDA0d01 0x4e80ec0 0x2 EMC0_01 EMC 602123
INVALID c4t50000123456DCDA0d02 0x4e80ec8 0x2 EMC0_02 EMC 602123
INVALID c4t50000123456DCDA0d03 0x4e80ed0 0x2 EMC0_03 EMC 602123
INVALID c4t50000123456DCDA0d04 0x4e80ed8 0x2 EMC0_04 EMC 602123
INVALID c4t50000123456DCDA0d05 0x4e80ee0 0x2 EMC0_05 EMC 602123
INVALID c4t50000123456DCDA0d06 0x4e80ee8 0x2 EMC0_06 EMC 602123
Note the "INVALID" entry at the beginning of each line.
Resolution
Remove the /etc/vx/disk.info and then restart vxconfigd with the following command:
# vxconfigd -k -x syslog
To prevent a recurrence of the issue, it is recommended to stop the eventsource daemon while changing / adding / removing LUNs to the systems.
Prior to making SAN changes to LUN's zoned to the system perform the following commands:
1) Stop the event source daemon
# vxddladm stop eventsource
2) Verify the LUNs are seen correctly in the OS.
3) Then restart the event source daemon.
# vxddladm start eventsource
4) If the system is clustered, it is recommended to freeze the service groups currently online in the cluster first.
If the system is not part of a cluster, skip this step.
Where clustered, each service group perform the following:
# hagrp -freeze (group_name) -sys (system_name)
5) Restart the vxconfigd daemon, which will rescan the available devices and build / update the disk.info file.
# vxconfigd -k -x syslog
6) Where clustered, unfreeze the service groups previously frozen.
If the system is not clustered, skip this step.
# hagrp -unfreeze (group_name) -sys (system_name)
7) Verify the "vxdisk list" output indicates the expected number of disk devices.
Applies To
Where DMP nodename Persistence is set to "yes" in the Volume Manager configuration.
Issue/Introduction
