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VMware vCenter Site Recovery Manager may not correctly cleanup snapshot LUNs (2017655)

Symptoms

After an SRM cleanup task, the snap volume is still showing in vCenter Server.
On the ESXi host, an APD issue is detected:

naa.60a9800050334f516d4a694d6a53666e : NETAPP Fibre Channel Disk (naa.60a9800050334f516d4a694d6a53666e)
vmhba3:C0:T0:L0 LUN:0 state:dead fc Adapter: Unavailable Target: Unavailable
In the vmkernel.log file, you see entries similar to:

vmkernel: 13:01:17:39.538 cpu4:4115353)ScsiDevice: 2310: Can't unregister device naa.60a9800050334f516d4a694d6a53666e because it is in use. OpenCount:1 RefCount:2 FilterCount:0
vmkernel: 13:01:17:39.538 cpu4:4115353)WARNING: NMP: nmp_DeviceUnregister: Could not unregister NMP device "naa.60a9800050334f516d4a694d6a53666e". Busy
In the SRM logs, you see entries similar to:

[01484 warning 'StorageProvider' opID=21E1C628-000000BF] Failed to Detach SCSI LUN 'naa.60a9800050334f516d4a694575306172' for host 'host-48:abzprdesx54.taqabratani.taqa1.local' - host does not support this operation.

Cause

SRM 5 tries to unmount and detach the VMFS volume to avoid any APD issues. However, this feature exists only in ESXi 5.x, and not in earlier versions.

Resolution

There is no workaround for this issue.

In case of an APD situation, see Virtual machines stop responding when any LUN on the host is in an all-paths-down (APD) condition (1016626).

To permanently resolve this issue, upgrade to ESXi 5.x.

Update History

11/30/2012 - Added link to article 1016626

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