VMware: Performing Non-disruptive migration with ESXi pRDM Microsoft Clustering environment in Cluster-Across-Boxes (CAB) configuration
Summary: Performing Non-disruptive migration with ESXi pRDM Microsoft Clustering environment in Cluster-Across-Boxes (CAB) configuration.
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Symptoms
When performing Non-disruptive migration (NDM) with ESXi Pass-through Raw Device Mapping (pRDM) Microsoft Clustering environment in Cluster-Across-Boxes (CAB) configuration, the host/multipath assumes that re-discovered V3 paths are still registered from before the cancel. In the Microsoft cluster environment, this results in the symptom NTFS event 57 and unexpected cluster resource failover. A second issue is where NDM changes are introduced before all participating hosts have had a chance to recognize the first change (cutover). This may result in cases where a write can be rejected by both V2 and V3 and devices get marked with Permanent Device Loss (PDL) by VMware.
Cause
This issue occurs due to a possible exposure downstream of repeated add/removal of paths without corresponding host rescan/clean up after each step.
Resolution
Clean up stale/dead host paths by performing host rescan operation after a Cancel issued, and that all participating hosts have realized the cutover change before running a cancel-revert.
Additional Information
Affected Products
VMware ESXi 6.7.X, VMware ESXi 7.x, VMware ESXi 8.xProducts
PowerEdge XR2, Poweredge C4140, PowerEdge C6420, PowerEdge FC640, PowerEdge M640, PowerEdge M640 (for PE VRTX), PowerEdge MX740C, PowerEdge MX840C, PowerEdge R240, PowerEdge R250, PowerEdge R340, PowerEdge R350, PowerEdge R440, PowerEdge R450
, PowerEdge R540, PowerEdge R550, PowerEdge R640, PowerEdge R6415, PowerEdge R650, PowerEdge R650xs, PowerEdge R6515, PowerEdge R6525, PowerEdge R740, PowerEdge R740XD, PowerEdge R740XD2, PowerEdge R7415, PowerEdge R7425, PowerEdge R750, PowerEdge R750XA, PowerEdge R750xs, PowerEdge R7515, PowerEdge R7525, PowerEdge R840, PowerEdge R940, PowerEdge R940xa, PowerEdge T140, PowerEdge T150, PowerEdge T340, PowerEdge T350, PowerEdge T440, PowerEdge T550, PowerEdge T640, PowerEdge XE2420, PowerEdge XE7420, PowerEdge XE7440
...
Article Properties
Article Number: 000185021
Article Type: Solution
Last Modified: 07 Jan 2025
Version: 2
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