A server technician has changed a hard disk in a RAID 5 array. The array status is now reported as being in a "degraded" state. Given this scenario, which of the following should the technician do…

Database index monitoring is unrelated to the physical RAID rebuild process and does not address the degraded array state.

When a new disk is inserted into a degraded RAID 5 array, the RAID controller initiates an automatic rebuild process that reconstructs the missing data using parity information from the remaining drives. The technician should monitor this rebuild to confirm it completes successfully and watch for any additional drive failures, which during a rebuild would cause total data loss. Interrupting or ignoring the rebuild risks leaving the array permanently degraded and unprotected.

Rebuilding the filesystem table is not required when a RAID controller is performing a parity-based data rebuild on a newly inserted drive.

Rebuilding the boot sector is a separate recovery action unrelated to a RAID 5 degraded state caused by a replaced disk.