3.6.2 Replacing a M.2 Disk Due to Failure or Other Problems
Failure of a M.2 disks reduces redundancy of the system area, and can impact patching, imaging, and system rescue. Therefore, the disk should be replaced with a new disk as soon as possible. When a M.2 disk fails, the storage server automatically and transparently switches to using the software stored on the inactive system disk, making it the active system disk.
An Exadata alert is generated when an M.2 disk fails. The alert includes specific instructions for replacing the disk. If you have configured the system for alert notifications, then the alert is sent by e-mail to the designated address.
M.2 disk is hot-pluggable and can be replaced when the power is on.
After the M.2 disk is replaced, Oracle Exadata System Software automatically adds the new device to the system partition and starts the rebuilding process.