Keywords: CSBS, fusionSphere , backup failed
【Problem Description】:
to execute the csbs action fault, and reponse a alarm info with "Quota Insufficient"
【Problem Analysis】:
Try to repeat the issue by executing a csbs action on a test vm, got the same error.
Then toke a ecs's disk snapshot and successed. We can ensure that the backend storage service is ok.
Toke a check of the current tenant resource quota, we found that the current backup capicity was no limited, and ensured that the storage pool has enogh space to be used.
At the ebackup portal, there was none backup job of csbs from 2020/12/24 to now.
【Root Cause】:
According the communication with csbs RDE enginer, we found that there is a soft defect in fusionsphere v2.0.6. If user create a quota rule, and set the valume "no limited" for backup capacity, then the ebackup plus service (DJ karbor) will set a default valume (default max size: 10TB) for this quota item. When all these csbs copys size reach to the default max size, then tenant 's auto backup plan or manual backup action would be failed with the 'quota insufficient' issue. This issue has been repaired in fusionsphere v6.3.
【Solution Description】:
Step 1, use the super_user login the manageone sc , and reconfigurate the speical quota rule, click "Limited" option and input the max support valume for each resource quota item and save it.
Step 2, logout and login the manageone sc with normal tenant account, check the quota info and ensure the new configuration is ok.
Step 3, select a vm random and take a manual backup option, then the csbs action can be executed successfully.
