Problems with RM 5.4.1 and SQL 2008 Enterprise

Question

Hello all, i try to do a consistent Snapshot of a SQL database, and i get one error. This works a long time ago, then this was not use anymore, and now we can reuse it and is not working.... Any suggest? Thanks! ----- 04/03/2013 16:58:44 MZ71 Replica 04/03/2013 16:58:44 created from application set SQL_Bantotal, job SQL_Consistente by Administrator. 04/03/2013 16:58:44 MZ71 Starting simulation of [application set: SQL_Bantotal / job: SQL_Consistente] at time 04/03/2013 16:58:44. 04/03/2013 16:58:44 MZ71 This operation can take a long time. Please be patient. 04/03/2013 16:59:32 MZ71 001564 INFORMATION: Need storage for 9 source device residing on VNX block CKM00114700023. 04/03/2013 16:59:32 MZ71 001566 INFORMATION: Storage Policy will consider 21 device(s) from the entire Replication Manager database. 04/03/2013 16:59:32 MZ71 001568 INFORMATION: After removing 0 in use devices, 0 devices that are not visible on the mount host and 19 devices that are the wrong storage type, there are now 2 devices being considered for this replica. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00011 is paired with replication device clariion_CKM00114700023_MZ71-0011-1775. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00012 is paired with replication device clariion_CKM00114700023_MZ71-0012-1775. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00013 is paired with replication device clariion_CKM00114700023_MZ71-0013-1775. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00014 is paired with replication device clariion_CKM00114700023_MZ71-0014-1775. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00015 is paired with replication device clariion_CKM00114700023_MZ71-0015-1775. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00018 is paired with replication device clariion_CKM00114700023_MZ71-0018-1775. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00019 is paired with replication device clariion_CKM00114700023_MZ71-0019-1775. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00020 is paired with replication device clariion_CKM00114700023_MZ71-0020-1775. 04/03/2013 16:59:33 MZ71 Original device clariion_CKM00114700023_00021 is paired with replication device clariion_CKM00114700023_MZ71-0021-1775. 04/03/2013 16:59:55 mz30 100510 INFORMATION: Start SQL Server Replication validation. 04/03/2013 16:59:55 mz30 100701 INFORMATION: Sufficient space for temporary VDI file on C:	empUndoDir\ 04/03/2013 16:59:55 mz30 100687 INFORMATION: Not running user scripts, skip checking user credentials 04/03/2013 16:59:55 mz30 100512 INFORMATION: Replication validation complete with no warnings 04/03/2013 16:59:55 mz30 100511 INFORMATION: End SQLServer Replication validation. 04/03/2013 16:59:55 mz30 Replication validation The volumes for this replication are all on basic disk. 04/03/2013 17:00:23 mz30 000570 ERROR: Attempt to do a consistent split of 9 LUNs on storage array CKM00114700023 which can only split 8 consistently 04/03/2013 17:00:23 mz30 026084 ERROR: Storage Services operation Validate failed with an error as follows: Storage Services has terminated with an error. 04/03/2013 17:00:22 MZ71 102206 ERROR: Validation failed. 04/03/2013 17:00:22 MZ71 102206 ERROR: Validation failed. -----

etaljic81 · Accepted Answer

The consistent split will split all of the LUNs you have defined in the application set at the same time. Instead, let VDI quiesce each database/logs as need be.

The steps you provided are perfect. Use those setting and you'll be all set.

etaljic81 · Answer

Disable consistent split and run the job again.

mtmmza · Answer

I do that, and works. LUN's 11, 12, 13, 14, 15, 18, 19 and 20 are POOL type and 21 are RAID type. I read that maybe there is the problem. I'm reading about sesseions, but i think that RM do sessions automatically...

etaljic81 · Answer

No need to do consistent split. RM uses VDI to quiesce the SQL application and thus you don't need to use consistent split.

The issue is that you cannot perform a consistent split across more than 8 LUNs. You are trying to perform a consistent split on 9 LUNs and that's why the job is failing. But again, no need to use it unless you really need all 9 LUNs to be consistently split at the same exact time. Let VDI do the work and quiesce the databases as needed.

mtmmza · Answer

8 Pool LUN's are for mdf's and RAID LUN is for ldf.

You say that is redundant use VDI and consistent split??

I should:

In Advanced Replication Settings -> General Rep Options: Uncheck "Use consistent split"

In Advanced Replication Settings -> SQL Server 2008 Instance Name:

-Consistency method: "by instance"

-Full, Online with advanced recovery (using VDI)

Thanks in advance.

Diego Santoni

mtmmza · Answer

Thanks Ernes for your time! Now works perfect.

etaljic81 · Answer

Any time, glad I can help.

Replication Manager

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