Dell Unity: Expanding a VMFS datastore completed with problems Adding host access to the datastore partially failed Error Code:0x5c00106

Failed: Adding host access to the datastore partially failed (Error Code:0x5c00106)
Rollback Result: Task was rolled back and marked as failed. This is because some tasks failed, or SP rebooted.
Job completed with problems at 85%.
The Datastore size is increased in Unity, but no changes are seen in vSphere.
Issue does not match Dell EMC Unity: Expanding a VMware Datastore with a running VM fails (User Correctable)

The vCenter credentials have changed recently but does not update on Unity. This may lead to authentication failures which can cause the job to get partially completed.

Update credentials used by Unity to access vCenter.

In Unity UI, 
ACCESS >> VMware >> vCenter >> Select the specific vCenter and update the credentials used to access the vCenter.
 



Update valid credentials and retry to expand the datastore.  This should resolve the issue.
(The credentials must be of a user that has either the Administrator or VMware Administrator role)
Check that the datastore/LUN has been expanded on both Unisphere and vSphere.

If the following error is received while expanding: "Failed: The storage server detected an internal failure in the VMware hypervisor. Review the event logs on the VMware hypervisor side. (Error Code:0x5c0000c)."
See: Dell EMC Unity: Expanding a VMware Datastore with a running VM fails (User Correctable) 

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