In the GUI, we can see the Home (dashboard) and Monitoring → Events.
Run Cluster health check
root@sitea-mgmt01:~# mmhealth cluster show
Component Total Failed Degraded Healthy Other
-------------------------------------------------------------------------------------
NODE 5 0 0 2 3
GPFS 5 0 0 2 3
NETWORK 5 0 0 5 0
FILESYSTEM 2 0 0 2 0
DISK 11 0 0 11 0
CES 2 0 0 0 2
CESIP 1 0 0 1 0
FILESYSMGR 2 0 0 2 0
GUI 1 0 1 0 0
PERFMON 5 0 0 5 0
THRESHOLD 5 0 0 5 0Check every node, component by component
oot@sitea-mgmt01:~# mmhealth node show -N allAfter powering the lab up, the GUI showed DEGRADED with this event
mmhealth event show gui_refresh_task_failed
root@sitea-mgmt01:~# mmhealth event show gui_refresh_task_failed
Event Name: gui_refresh_task_failed
Description: One or more GUI refresh tasks failed, which means that data in the GUI is outdated.
Cause: There can be several reasons.
User Action: Check whether there is additional information available by using the '/usr/lpp/mmfs/gui/cli/lstasklog [taskname]' command. Then, run the specified task manually on the CLI by using the '/usr/lpp/mmfs/gui/cli/runtask [taskname] --debug' command. Check the GUI logs under '/var/log/cnlog/mgtsrv' and contact IBM Support if this error persists or occurs more often.
Severity: WARNING
State: DEGRADEDFind the cause in the GPFS log
tail -30 /var/adm/ras/mmfs.log.latestHere GPFS started before the GUI web service was listening on port 443 so just re-run a failed task
root@sitea-mgmt01:~# /usr/lpp/mmfs/gui/cli/runtask CLUSTER_CONFIG --debug
debug: locale=en_US
debug: Running 'mmsdrquery 'sdrq_cluster_info' all ' on node localhost
debug: Running 'mmsdrquery 'sdrq_nsd_info' all ' on node localhost
debug: Running 'mmlscluster -Y ' on node localhost
debug: Running 'mmsdrquery 'sdrq_node_info' all ' on node localhost
debug: Running 'mmlsnodeclass 'GUI_MGMT_SERVERS' -Y ' on node localhost
debug: Running 'mmlsnodeclass 'GUI_SERVERS' -Y ' on node localhost
EFSSG1000I The command completed successfully.
root@sitea-mgmt01:~#IBM Support Data
When you open an IBM support case, they ask for a gpfs.snap, a bundle of logs, configuration and state from the cluster. gpfs -a will run the snap across all nodes
oot@sitea-mgmt01:~# gpfs.snap -a
gpfs.snap: started at Sat Oct 17 08:24:52 PM BST 2026.
Gathering common data...
Gathering Linux specific data...
Gathering extended network data...
Gathering local callhome data...
Gathering local gds data...
Gathering local perfmon data...
Gathering local audit_watch data...
Gathering local sysmon data...
Gathering local cnss data...
Gathering local gui data...
Gathering trace reports and internal dumps...
Gathering Transparent Cloud Tiering data at level BASIC...
gpfs.snap: The Transparent Cloud Tiering snap software was not detected on node sitea-mgmt01.lab.internal
Gathering QoS data at level FULL...
gpfs.snap: No QoS configuration was found for this cluster.
gpfs.snap: QoS configuration collection complete.
Gathering cluster wide gui data...
Quick Health Check
mmgetstate -a # every node active
mmhealth cluster show # nothing FAILED or DEGRADED
mmlsdisk <filesystem> -e # no output = all disks up
mmlsmount all -L # file systems mounted where expected
mmces state show -a # CES/NFS healthy
mmces address list # floating IPs spread across CES nodesCluster and nodes Check
mmgetstate -a # every node active
mmgetstate -s # Quorum summary
mmlscluster # Cluster name and ID
mmlsconfig #Cluster config settings Health monitoring (mmhealth)
mmhealth cluster show # health of the whole cluster
mmhealth node show # All components on this node
mmhealth node show -N all # All components on all node
GUI Health events
systemctl is-active gpfsgui # GUI service on the GUI node
/usr/lpp/mmfs/gui/cli/lstasklog # Recent GUI refresh tasks and results Main Logs
/var/adm/ras/mmfs.log.latest # found on all nodes
/var/log/ganesha.log # NFS mount problems, slowness, grace NFS Issues
showmount -e <ip> from the client # Is NFS answering?
mmces address list # show address
mmces service list -a # is nfs running
mmces state show -a # is nfs healthy
mmnfs export list #NFS exports and allowed clientsPorts 2049 (NFS) and 111 (portmapper) must be open
root@sitea-mgmt01:~# rpcinfo -p sitea-ces01-d
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