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SK0-004 · Question #685

A technician was assigned new storage for the server from the storage administrator. The technician is unable to see the storage on the server, but the previously assigned storage is visible and…

The correct answer is A. Perform a rescan of the disk. When newly provisioned storage is not visible to the OS, a disk rescan is the first step to let the system detect the new volume without a reboot.

Troubleshooting

Question

A technician was assigned new storage for the server from the storage administrator. The technician is unable to see the storage on the server, but the previously assigned storage is visible and working properly. Which of the following should the technician do FIRST in order to see the storage on the server?

Options

  • APerform a rescan of the disk.
  • BInstall the storage device drivers.
  • CAssign a drive letter to the new storage.
  • DFormat the new storage.

How the community answered

(22 responses)
  • A
    73% (16)
  • B
    5% (1)
  • C
    14% (3)
  • D
    9% (2)

Why each option

When newly provisioned storage is not visible to the OS, a disk rescan is the first step to let the system detect the new volume without a reboot.

APerform a rescan of the disk.Correct

Operating systems do not always auto-detect newly assigned storage, especially in SAN or virtualized environments. Performing a disk rescan (via Disk Management on Windows or rescan commands on Linux) instructs the OS to re-enumerate attached storage devices and discover newly provisioned LUNs or volumes, which must happen before any other configuration steps such as assigning a drive letter or formatting can occur.

BInstall the storage device drivers.

Driver installation is unnecessary if previously assigned storage is already visible and working, indicating the drivers are already functional.

CAssign a drive letter to the new storage.

A drive letter can only be assigned after the OS detects the storage; detection must come first.

DFormat the new storage.

Formatting is a destructive operation that cannot be performed until the storage is visible to the OS.

Concept tested: Disk rescan for newly provisioned storage volumes

Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/overview-of-disk-management

Topics

#disk rescan#SAN storage#storage provisioning#troubleshooting storage

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