An NVMe disk is wrongly selected as a target disk while replacing a SAS SSD

If both NVMe disks and SAS SSDs fail and are physically replaced simultaneously on the cluster node, and then the SAS SSD is replaced first using the Replace disk option on the Monitor > Infrastructure > Disks tab in the NetBackup Flex Scale UI, the NVMe disk might get selected as target disk. The data on the SAS SSD is rebuilt on the NVMe disk. Now, when you attempt to replace an NVMe disk, the Replace disk operation fails as a disk of similar type is no longer available on the node. (IA-27647)

Workaround

Replace the NVMe SSD first in such scenarios. After all the NVMe disks are replaced, replace the faulted SAS SSD with the newly added SAS SSDs.