In ONTAP, how do RAID-DP disk rebuilds occur after a disk replacement?

In ONTAP, how do RAID-DP disk rebuilds occur after a disk replacement?

• A. RAID-DP rebuilds require manual initiation.
• B. RAID-DP rebuilds occur automatically after a disk replacement.
• C. RAID-DP rebuilds never occur automatically; you must replace the disk again.
• D. RAID-DP rebuilds occur only after a cluster reboot.

Answer: (B)

RAID-DP disk rebuilds occur automatically after a disk replacement. When you replace a failed disk in a RAID-DP group, ONTAP automatically starts reconstructing the data onto the new disk using parity information from the remaining disks. This background rebuild happens without manual intervention, and I/O can continue (though you may see degraded performance) until the rebuild finishes. No reboot is needed, and you don’t have to replace the disk again—the system handles the reconstruction and returns the group to full redundancy once complete.

RAID-DP disk rebuilds occur automatically after a disk replacement. When you replace a failed disk in a RAID-DP group, ONTAP automatically starts reconstructing the data onto the new disk using parity information from the remaining disks. This background rebuild happens without manual intervention, and I/O can continue (though you may see degraded performance) until the rebuild finishes. No reboot is needed, and you don’t have to replace the disk again—the system handles the reconstruction and returns the group to full redundancy once complete.