Microsoft SQL outage during ONTAP MetroCluster staged upgrades
Applies to
- ONTAP 9.3 and above
- ONTAP MetroCluster
- VMware ESXi 6.5 and above
- FlexPod
- Cisco UCS VIC 1340 FCoE CNA
- FNIC 1.6.0.37 Driver
Issue
- 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