PPME setup failed on SQL Cluster node

Question

hi,

We are migrating LUNS from a CX4 to a VNX2 for a SQL 2012 Cluster running on a Windows 2012 R2 std edition.

Powerpath version 6.0 is installed on all node in the cluster.

The SQL Cluster has 3 nodes. We decided to migrate the LUN via PPME.

This works fine on 2 nodes. But failed on one node, we got the following error :

powermig setup -cluster mscd -techtype hostcopy -src harddisk43 -tgt harddisk72 -no

PPME error(88): Cannot check a migration handle for cluster migration.

I noticed two errors :

1- Powermigcl show the following error

08/11/2015 14:25:02: ClusterAPIFailure throwned

Error code=5007

Error msg= Message=Couldn't open cluster resource. Name="PPME SYNFIX - Data"

But we got the same error on other node, i don't think that cause the issue

2 - PPME.log show this error

Error: umd_OpenDbase failed rc = ffffffff errCode = 21

11-08-15:12:28:42:UMD: Error: umd_CloseDbase failed rc = ffffffff errCode = 9e

11-08-15:12:28:42:API: Error: Setup failed: PPME error(88): Cannot check a migration handle for cluster migration

Error Code 21 = access denied

we have already repaired PowerPath, renamed the PPME shared Database (umdDB), but the problem persists.

Now we will completely reinstall PP.

Any idea ?

is this config supported with 3 nodes ?

thx

andress1 · Answer

Yes, PPME support 3 node cluster.

That error and the information from ppme.log tell me that another node owns the resources of the disk. Please, note that the migration commands must be performed from the node that owns the cluster group because PPME wants to access the disk and can only be done by the node that owns the resource.

kelleg · Answer

You might want to also post this question in the PowerPath forum https://community.emc.com/community/products/powerpath glen

acv-fredp · Answer

The Cluster Disk ressource are owned by the host where the command was executed.

The PPME ressource are created in the ressource group.

EMC support asked me to reinstall PowerPath.

It seems that PPME cannot access the shared Database in C:\program files\EMC\ppme\db\umdbb

17-08-15:07:35:48:UMD: Error: umd_OpenDbase failed rc = ffffffff errCode = 21

17-08-15:07:35:48:UMD: Error: umd_CloseDbase failed rc = ffffffff errCode = 9e

17-08-15:07:35:48:API: Error: Setup failed: PPME error(88): Cannot check a migration handle for cluster migration

is this DB shared between cluster node ?

thx a lot for your help.

Mich · Answer

Hello, I believe this is a known issue with PPME 6.0. Please see KB https://support.emc.com/kb/204859

It will be fixed in PP 6.0 SP1. This is may not be released for a while.

Alternative is to uninstall PP 6.0 and install 5.7 SP4 for the migration.

Regards, Michel.

VNX

PPME setup failed on SQL Cluster node

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