7.4. CSI Driver

Automatic flattening of snapshots is not working

When there is a single common parent RBD PVC, if volume snapshot, restore, and delete snapshot are performed in a sequence more than 450 times, it is further not possible to take volume snapshot or clone of the common parent RBD PVC.

To workaround this issue, instead of performing volume snapshot, restore, and delete snapshot in a sequence, you can use PVC to PVC clone to completely avoid this issue.

If you hit this issue, contact customer support to perform manual flattening of the final restore PVCs to continue to take volume snapshot or clone of the common parent PVC again.

(BZ#2232163)