6027-1542 [A] Old shared memory exists but it is not valid nor cleanable.
Explanation
A new GPFS™ daemon
started and found existing shared segments. The contents were not
recognizable, so the GPFS daemon
could not clean them up.
User response
- Stop the GPFS daemon from trying to start by issuing the mmshutdown command for the nodes having the problem.
- Find the owner of the shared segments with keys from 0x9283a0ca through 0x9283a0d1. If a non-GPFS program owns these segments, GPFS cannot run on this node.
- If these segments are left over from a previous GPFS daemon:
- Remove them by issuing:
ipcrm -m shared_memory_id
- Restart GPFS by issuing the mmstartup command on the affected nodes.
- Remove them by issuing: