Hello  i want to delte my trident project tirdent and want to reinstall it. I get the following Errormessage:    type: NamespaceDeletionContentFailure - lastTransitionTime: "2021-09-16T09:29:59Z" message: 'Some resources are remaining: tridentstorageclasses.trident.netapp.io has 3 resource instances, tridentversions.trident.netapp.io has 1 resource instances' reason: SomeResourcesRemain status: "True" type: NamespaceContentRemaining - lastTransitionTime: "2021-09-16T09:29:59Z" message: 'Some content in the namespace has finalizers remaining: trident.netapp.io in 4 resource instances' reason: SomeFinalizersRemain status: "True" type: NamespaceFinalizersRemaining phase: Terminating   oc delte project trident -force does not work.    Any idea ?   thanks for your help. Horsti  ... View more

Dear sir， As I know，openstack Queens has the multiattach feature released which allows multiple hosts to attach to a volume. So can you tell me how to set a FAS storage to support this feature. Thank you very much!   Daniel   ... View more

Hello.   I run Netapp FAS8040 for Openstack Cinder Backend based on iSCSI protocol.   But iSCSI sometimes occur some problems like multipath issues. So Netapp saids chaging backend protocol iSCSI -> NFS. Because NFS is simple and easy to manage + some features are better than iSCSI.   But someone say that iSCSI is more reliable than NFS. In their opinion, Cinder Backend based on iSCSI causes VM level trouble. On the other hand, Cinder Backend bases on NFS causes Hypevisor level trouble.   Whay do you think about this?   Thank you.   ... View more

A Cinder volume corresponds to a file within the NFS share provided by a FlexVol. The space is consumed when you write actual data in the Cinder volume. ONTAP is not able to read the filesystem within the Cinder volume to tell if a block is in use or not, so removing a file inside the Cinder volume won't free space. Only when you delete the Cinder volume, the corresponding file within the NFS share will be deleted, and the space will be reclaimed. How do I enable trim(unmap / reclaim) when using the nfs cinder backend? ... View more