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Microsoft SQL outage during ONTAP MetroCluster staged upgrades

Last Updated:

Applies to

  • ONTAP 9.3 and above
  • ONTAP MetroCluster
  • VMware ESXi 6.5 and above
  • FlexPod
  • Cisco UCS VIC 1340 FCoE CNA
  • FNIC Driver


  • Microsoft SQL services interrupted during multi step staged non-disruptive upgrade of ONTAP from 9.3 - 9.5 - 9.7
  • Only VMware virtualized Windows Server failover clustering with SQL server instance impacted
  • Data is accessed via raw device mappings (RDM) with no indication of all paths down (APD) or permanent device loss (PDL)
  • Cluster shared disks are configured as per VMware best practices and check list and following setup guide


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