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ESX Server Might Become Unresponsive when LUNs from IBM SVC Storage Array Are Removed

Details

ESX Server hosts might become unresponsive with the following configuration and scenario:

  • ESX Server 3.0.2, with multiple HBAs connected to IBM SVC storage array
  • ESX Server has multiple paths to each LUN presented from the IBM SVC storage array
When a rescan is initiated after IBM SVC LUNs are removed from the ESX Server 3.0.2 hosts, the following error messages are logged in /var/log/vmkernel :

cpu7:1050)ALERT: SCSI: 1726: SCSIChoosePath - None of the paths to SVC device vmhba1:1:0 are working
cpu7:1050)WARNING: SCSI: 1785: Manual switchover to path vmhba1:1:0 begins.
cpu7:1050)SCSI: 1789: Changing active path to vmhba1:1:0
cpu7:1050)SCSI: 1072: Could not switchover to vmhba1:1:0. Check Unit Ready Command failed AFTER Start Unit: Not ready
 
In the example above, vmhba1:1:0 is the LUN that has been removed from the ESX Server host.

Solution

Apply patch ESX-1002424 on all ESX Server 3.0.2 hosts that are connected to the IBM SVC storage array. For details about the patch, see http://kb.vmware.com/kb/1002424.

Keywords

1002424 SVC HCL

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Actions
  • KB Article: 1003270
  • Updated: Aug 14, 2009
  • Products:
    VMware ESX
  • Product Versions:
    VMware ESX 3.0.x