Disk replacement might fail in certain situations

When you physically replace a faulty disk on a cluster node and start the disk replacement operation by using the Replace disk option on the Monitor > Infrastructure > Disks tab in the NetBackup Flex Scale UI, RAID 0 volume is created on the newly added disk and the operating system is queried for the new disks. However, the newly added disks are not discovered immediately by the operating system. There is a delay between RAID 0 creation and disks being available at the operating system level. (IA-27649)

Workaround

Retry the Replace disk operation by clicking the Replace disk option on the Monitor > Infrastructure > Disks tab in the NetBackup Flex Scale UI.