Comment 3 for bug 1921012

I have tried to reproduce the bug using the most recent manila version. It does not occur, though. Actually, since the patch [1], the `netapp_root_volume_aggregate` is only set if it is different from False. So, the empty string is ignored, using the default ONTAP behavior.

However, the bug with that option may still occur with a different scenario.

1) `netapp_root_volume_aggregate` empty or not informed: it will use the default ONTAP behavior, which chooses the most appropriate aggregate to be the root. After the creation of vserver, the NetApp driver modifies the vserver for having access to the aggregates given by the set `netapp_aggregate_name_search_pattern`. In case the set does not contain the chosen aggregate, the share server setup will fail.

2) `netapp_root_volume_aggregate` invalid aggregate name: value is not part of the ONTAP aggregates, the share server setup will fail.

[1] https://review.opendev.org/c/openstack/manila/+/747048