GSLC · Question #129
Mark works as a Network Administrator for Technet Inc. The company has a Windows 2003 domainbased network. The network has a file server that uses a RAID-5 volume. The RAID-5 volume is configured…
The correct answer is A. Replace the failed drive with a new one, use Disk Management, select a new area of free space. RAID-5 can survive a single drive failure and be rebuilt without data loss by replacing the failed drive and using Disk Management to regenerate parity data onto the new disk.
Question
Mark works as a Network Administrator for Technet Inc. The company has a Windows 2003 domainbased network. The network has a file server that uses a RAID-5 volume. The RAID-5 volume is configured with five hard disk drives. Over the weekend, a drive in the RAID-5 volume fails. What will Mark do to restore the RAID-5 volume?
Options
- AReplace the failed drive with a new one, use Disk Management, select a new area of free space,
- BUse FDISK to delete the RAID-5 volume, and then restore data from the tape backup.
- CUse Disk Management, select the failed drive, and then regenerate the volume.
- DReplace the failed drive with a new one, use FDISK, select a new area of free space, and then
How the community answered
(44 responses)- A73% (32)
- B16% (7)
- C7% (3)
- D5% (2)
Why each option
RAID-5 can survive a single drive failure and be rebuilt without data loss by replacing the failed drive and using Disk Management to regenerate parity data onto the new disk.
RAID-5 uses distributed parity across all drives, so a single drive failure does not cause data loss. The correct recovery process in Windows Server 2003 is to physically replace the failed drive with a new one, then use Disk Management to select the new free space area and repair the volume, which triggers automatic rebuild using the parity data from the remaining drives.
FDISK is a legacy partitioning tool and cannot manage dynamic disk volumes or RAID sets; additionally, deleting the volume and restoring from tape is unnecessary since RAID-5 retains data after a single drive failure.
You cannot regenerate a RAID-5 volume without first replacing the failed physical drive; regeneration requires a new disk to write rebuilt data onto.
FDISK does not support dynamic disk RAID management in Windows Server 2003; Disk Management is the correct tool for rebuilding a RAID-5 volume.
Concept tested: RAID-5 single drive failure recovery procedure
Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/manage-disks
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