3.3.5 Replacing a Hard Disk Proactively
Exadata Storage software has a complete set of automated operations for hard disk maintenance, when a hard disk has failed or has been flagged as a problematic disk. But there are situations where a hard disk has to be removed proactively from the configuration.
In the CellCLI ALTER PHYSICALDISK
command, the DROP FOR
REPLACEMENT
option checks if a normal functioning hard disk can be
removed safely without the risk of data loss. However, after the execution of the
command, the grid disks on the hard disk are inactivated on the storage cell and set
to offline in the Oracle ASM disk groups.
To reduce the risk of having a disk group without full redundancy and proactively replace a hard disk, follow this procedure: