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Knowledge Base

ESXi host 6.0 and 6.5 fails with PSOD - "SCSI_DeviceClusteringClearState" when vMotion occurs for a MSCS VM. (56492)

Last Updated: 2/27/2024Categories: TroubleshootingTotal Views: 21565Language:
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Symptoms

ESXi 6.0 and 6.5 host fails with a PSOD -  "SCSI_DeviceClusteringClearState" when vMotion occurs for a MSCS VM.

You see the backtrace similar to:

Backtrace for current CPU #xx, worldID=xyxyxy, fp=0x2005
0xyyyzyyyxyzzy:[0xxxxxxyxxxxxx]SCSI_DeviceClusteringClearState@vmkernel#nover+0x8 stack: 0x0, 0x19be, 0x2005, 0x41802af1f2ed, 0x43074175b0c0
0xyyyzyyyxyyyy:[0xxxzxxxxxxxxx]VSCSI_DestroyDevice@vmkernel#nover+0x2b8 stack: 0x4391da49bf38, 0x2005, 0x4391da49bf30, 0x4315c8417740, 0x41802b517bb8
0xyyyzyyyxyyyx:[0xxxxxxyxxxxxx]UW64VMKSyscallUnpackVSCSIDestroyDev@(user)#<None>+0x10 stack: 0x2005, 0x0, 0xddb7aa4148, 0x742068637573206f, 0x4391da49bfc8
0xyyyzyyxxyyyy:[0xxxxxxxxxzyxx]User_UWVMK64SyscallHandler@(user)#<None>+0x247 stack: 0xddb7aa4148, 0x742068637573206f, 0x4391da49bfc8, 0x2005, 0xddfcbd9a50
0xyxyzyyyxyyyy:[0xxxxxxzyzxxxx]SyscallUWVMK64@vmkernel#nover+0x90 stack: 0x0, 0x0, 0x59, 0xddb7aa4148, 0x2005
0xyyyzyyyxyyyz:[0xxzxxxxxxxxxx]gate_entry_@vmkernel#nover+0x0 stack: 0x0, 0x59, 0xddb7aa4148, 0x2005, 0xddfcbd9a50

Clustering node virtual machines contain shared non-RDM disk (VMDK or VVOL).

Clustering node Virtual Machines are in a CAB (Cluster Across Box) configuration.

SCSI Bus Sharing mode is set to Physical.

Cause

This issue occurs due to misconfiguration of non-RDM disks across the hosts in physical bus sharing mode during vMotion of MSCS virtual machines. This issue may also occur during vMotion of VVOLs

PSOD can occur for Oracle RAC VMs too when they are vMotioned

Resolution

This issue is resolved in:
VMware ESXi 6.5, Patch Release ESXi650-201811002. For more information, see https://docs.vmware.com/en/VMware-vSphere/6.5/rn/esxi650-201811002.html.

VMware ESXi 6.0, Patch Release ESXi600-201909001. For more information, see https://docs.vmware.com/en/VMware-vSphere/6.0/rn/esxi600-201909001.html.

Workaround

To work around this issue, setup the virtual machines cluster by using the following shared storage configuration for MSCS in vSphere:

Note: You must use one of these configuration to setup virtual machines.

Microsoft Cluster on a Single Host with one or more shared eagerzeroedthick virtual disks.

Microsoft Cluster on a Single Host with one or more shared RDMs in Virtual Compatibility mode.

Microsoft Cluster across Hosts with one or more shared RDMs in Physical Compatibility mode.

Note: All these configurations involves sharing of RDMs/VMDKs. Relevant virtual machine Affinity or Anti-affinity rules must be configured to disallow unnecessary virtual machines migration.

For more information, see:

Setup for Failover Clustering and Microsoft Cluster Service Guide

Microsoft Cluster Service (MSCS) support on ESXi/ESX (1004617)

Microsoft Windows Server Failover Clustering on VMware vSphere 6.x: Guidelines for supported configurations (2147661)

Related Information

Refer to VMware KB : How to Download ESXi, vCenter Server Patches in Customer Connect

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