Bug 2035551

Summary:	Error ENOENT: subvolume group 'csi' does not exist observed in the must-gather run
Product:	[Red Hat Storage] Red Hat OpenShift Data Foundation	Reporter:	Bipin Kunal <bkunal>
Component:	must-gather	Assignee:	Gobinda Das <godas>
Status:	CLOSED NOTABUG	QA Contact:	Elad <ebenahar>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	4.9	CC:	mmuench, muagarwa, nberry, ocs-bugs, odf-bz-bot, sabose
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Last Closed:	2022-01-31 17:36:15 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Bipin Kunal 2021-12-24 16:16:30 UTC

Description of problem:
While running OCS must-gather, the below error  was observed

[must-gather-zr4nx] POD 2021-12-24T14:30:00.060544459Z Error ENOENT: subvolume group 'csi' does not exist


Version-Release number of selected component (if applicable):

OCP-4.9.11
OCS-4.8.6

How reproducible:
1. Run must-gather for OCS-4.8 

   $ oc adm must-gather --image=registry.redhat.io/ocs4/ocs-must-gather-rhel8:v4.8 --dest-dir=./cluster-5/


I am not sure if this is reproducible. I will notice on the next run.

Comment 3 Mudit Agarwal 2021-12-25 01:08:40 UTC

The subvolumegroup is only created upon the creation of first subvolume, if you don't have any cephFS subvolume in the system then you will get this error.

Comment 5 Mudit Agarwal 2021-12-27 05:33:07 UTC

No, we can't. The message comes from Ceph.

Comment 7 Mudit Agarwal 2022-01-31 17:36:15 UTC

No, there is no good way. 
Moreover it is trivial and doesn't affect the customers because the customers who have cephFS will not see this as they will be having some subvolumes and the customers with rbd will not care about this message.