APAR status
Closed as program error.
Error description
On a cluster with two quorum nodes and tiebreaker disks an unexpected quorum loss can be seen on the challenger node when the current cluster manager sees a mmshutdown (or node reboot).
Local fix
Move the cluster manager role by hand using the 'mmchmgr -c <REMAINING_QUORUM_NODE>' command
Problem summary
On a cluster with two quorum nodes and tiebreaker disks an unexpected quorum loss can be seen on the challenger node when the current cluster manager sees a mmshutdown (or node reboot).
Problem conclusion
This problem is fixed in 5.1.1 PTF 3 To see all Spectrum Scale APARs and their respective fix solutions refer to page https://public.dhe.ibm.com/storage/spectrumscale/spectrum_scale_ apars.html Benefits of the solution: No more quorum loss on the remaining quorum node when the former cluster manager sees a mmshutdown on a cluster with tiebreaker disks configured. Work around: Move the cluster manager role by hand using the 'mmchmgr -c <REMAINING_QUORUM_NODE>' command Problem trigger: GPFS shutdown (mmshutdown) or node reboot of current cluster manager Symptoms: File System Outage (unexpected GPFS file system unmount for about 30 seconds) Platforms affected: ALL Operating System environments Functional Area affected: Cluster manager Customer Impact: High Importance
Temporary fix
Comments
APAR Information
APAR number
IJ33949
Reported component name
SPEC SCALE STD
Reported component ID
5737F33AP
Reported release
511
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-07-27
Closed date
2021-07-27
Last modified date
2021-07-27
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
SPEC SCALE STD
Fixed component ID
5737F33AP
Applicable component levels
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"STXKQY"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"511","Line of Business":{"code":"LOB26","label":"Storage"}}]
Document Information
Modified date:
28 July 2021