I used the feature snaphsot from openstack version ICEHOUSE on cinder configured with NFS driver for Netapp cluster-mode.
That's work but for sometime we encounter some issue of performance with the FAS when there are many snapshot launched simultanously.
Snapshot takes more time to finish and the CPU of the FAS approximates 98 %.
I was advised to use the driver iscsi for netapp that would improve performance due to that the snapshot will be done bu the netapp.
The driver iscsi send a request to FAS in order to do the snapshot by herself.
May you confirm me please if i use the iscsi driver that i gain performance and the snapshot will be done by the FAS ?
In any case i have to do the test with iscsi.
Could you help me please to configure the iscsi on the netapp and Openstack...
-From Netapp : I set the license iscsi and create a iscsi vserver with an aggregate and a LUN
Sould i configure the initiator group ?
- From Openstack : Should i start the iscsi service or no need because that's the driver iscsi who manage the FAS with API ?
Thanks for your reply.