This post is more than 5 years old
124 Posts
0
2932
October 4th, 2010 08:00
SRM with Celerra - NFS Options???
I am wondering if SRM is supported with NFS volumes presented by the Celerra (of course being replicated with Celerra Replicator)? I see lots of work that has been done with iSCSI from the Celerra (and CLARiiON), but I hesitate to recommend it to a customer: iSCSI from the Celerra is much more expensive in terms of reserved storage capacity for iSCSI snaps; and RM isn't necessary for managing the replication sessions with NFS.
Thoughts?
Thanks,
Eric
No Events found!
bwolfeld
12 Posts
0
October 4th, 2010 09:00
Hi Eric,
Celerra NFS has supported SRM has been available since VMware release SRM 4.1 last year. You can download the SRA directly from VMware's web site.
EMC also has an SRM Failback module available on Powerlink. (Home > Support > Software Downloads and Licensing > Downloads A-B > Adapters for Third-Party Applications ). Failback is a unique feature available from EMC.
Best,
Bruce
emarzock1
124 Posts
0
October 5th, 2010 08:00
Good stuff. Thanks Bruce.
emarzock1
124 Posts
0
October 6th, 2010 10:00
Bruce,
Can you confirm that the SRM/NFS solution does NOT require Replication Manager?
Thanks,
Eric
bwolfeld
12 Posts
1
October 6th, 2010 11:00
Eric,
You do not need RM. You will need a Celerra Replicator license to manage the underlying replication of the NFS Datastores.
Keep in mind that Celerra Replicator is not "VM Aware" and the data at the recovery site will only be crash consistent. If you require that the datastores at the recovery site be more than crash consistent, you should consider using RM.
emarzock1
124 Posts
0
October 6th, 2010 12:00
Thanks again.
Is there a Solution Guide that talks to application-consistent vs. crash-consistent in the context of NFS replications, SRM, and Replication Manager? I'm just a little confused on what is, and is not possible these days.
The only way that I know of that RM could be used to take app-consistent snaps is via iSCSI snaps and iSCSI replications via Celerra Replicator. But I may be wrong (or just outdated). Not sure how to get app-consistent snaps if the (say) exchange database is sitting inside of a datastore on a replicated NFS volume.