When doing NCC checks, I get a report(example1) that some volume groups usage is high (95%).
Detailed information for vg_space_usage_check:
FAIL: Volume Group pvc-xxxxxx-9xxx-11x9-bf59-xxxxx8d87c391 space usage (95 above 90 %
The volume group is mounted to Kubernetes pod running in a Karbon cluster.
My issue is that, when checking usage of the volume group from within the kubernetes pod, I get different usage results, current stats are 24% used, 76% free.
The NCC check and the manual check results don't match.
NOTE: There is a clean-up mechanism, so disk usage does go up and down.
I have re-ran the ncc checks several times, they yield the same stats (95% usage), thou the usage from the pod is 24%(currently).
Can you please elaborate on how the NCC vg_space_usage_check work?
And what else to look at to further investigate the mismatch of stats.
Best answer by dlink7