> NMM uses the SQL VSS Writer for backup and recovery, NMSQL uses the
> SQL Virtual Device (VDI) Interface . SQL VDI provides the ability to
> perform incremental (log) backups and any PIT recoveries, this is
> not supported via the SQL VSS Writer.
>
> Suggest you stay with NMSQL for SQL protection for now if you want
> these capabilities. If you use only SQL full recovery mode, NMM
> would be a good choice.
AH. No, we don't need PIT (Point In Time) recoveries; we always do fulls.
But I frequently see errors relating to VSS in my job logs (even on
machines where the VSS updates have been applied, or - like below - on
Win2008 R2 clients).
Things like:
C:\ 7281:save: VSS snapshot failed with error 0x80042301 -- VSS Backup or
Restore is not in the correct state for the operation, or the writer is
not in the correct state..
C:\ 7284:save: Networker will save the files without the snapshot.
If I do nothing, the problem usually disappears by the next night. Not
sure why it happens, but it doesn't seem to affect the quality of the
backups.
So I think I will stick with NMSQL. I have some SQL servers/clusters being
upgraded soon; perhaps I will try out the NMM client on one of those,
first.
Thanks
>
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU
> ] On Behalf Of Michael Leone
> Sent: Monday, February 14, 2011 11:19 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] Q about Networker module for SQL/Databases and
> Applications
>
> I have a lot of licenses for Networker Module for SQL. I thought
> that module was being discontinued, and migrated over to Networker
> Module for Microsoft Applications. Is that correct?
>
> I have a couple of those NMM licenses (according to nsrlic). I guess
> I have to migrate my Module for SQL licenses to NMM licenses, and
> then remove the Module for SQL, and replace it with the NMM?
>
> I've seen posts here that seem to indicate that NMM isn't as stable
> for SQL as the Module for SQL? I'd like to hear of experiences and
> gotchas, from anyone who has gone from the Module for SQL to NMM,
> before I take the plunge myself ...
>
> I have a number of MS SQL 2005 and SQL 2008 servers (some are SQL
> clusters). And I'm leery about using a new module ...
>
> Thanks
>
> --
> Michael Leone
> Network Administrator, ISM
> Philadelphia Housing Authority
> 2500 Jackson St
> Philadelphia, PA 19145
> Tel: 215-684-4180
> Cell: 215-252-0143
> <mailto:michael.leone AT pha.phila DOT gov>
>
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