Veritas Volume Manager (VxVM) might report false serial split brain under certain scenarios (1834513)

Last published : Sep 09, 2026
VxVM might detect and report a false serial split brain when all of the following conditions are met:
  • One or more arrays that provide the shared storage for the cluster are being powered off
  • At the same time when the arrays are being powered off, an operation that requires an internal transaction is initiated (such as VxVM configuration commands)
In such a scenario, disk group import will fail with a split brain error and the vxsplitlines output will show 0 or 1 pools.
Related information
Veritas Volume Manager known issues

Workaround:

To recover from this situation
  1. Retrieve the disk media identifier (dm_id) from the configuration copy:
    \# /etc/vx/diag.d/vxprivutil dumpconfig device-path
    The dm_id is also the serial split brain id (ssbid)
    1. Use the dm_id in the following command to recover from the situation:
    \# /etc/vx/diag.d/vxprivutil set device-path ssbid=dm_id