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Citrix

1Y0-201 · Question #81

Scenario: While updating the XenServer tools of the vDisk on the master target device, a Citrix Administrator receives the following error: STOP: 0x0000007B How should the administrator update the mas

The correct answer is A. Perform a Reverse image.. The STOP 0x0000007B (INACCESSIBLE_BOOT_DEVICE) error occurs when storage controller drivers change during a XenServer tools update on a vDisk; a Reverse Image operation is required to resolve this by reverting the vDisk content to a physical disk for proper re-imaging.

Troubleshooting

Question

Scenario: While updating the XenServer tools of the vDisk on the master target device, a Citrix Administrator receives the following error:

STOP: 0x0000007B How should the administrator update the master target device and vDisk created from that device?

Options

  • APerform a Reverse image.
  • BRestart the Stream service.
  • CDowngrade the XenServer tools.
  • DChange the write cache location to cache on server.

How the community answered

(28 responses)
  • A
    75% (21)
  • B
    14% (4)
  • C
    4% (1)
  • D
    7% (2)

Why each option

The STOP 0x0000007B (INACCESSIBLE_BOOT_DEVICE) error occurs when storage controller drivers change during a XenServer tools update on a vDisk; a Reverse Image operation is required to resolve this by reverting the vDisk content to a physical disk for proper re-imaging.

APerform a Reverse image.Correct

A Reverse Image operation copies the vDisk back to a physical hard drive, allowing the administrator to update XenServer tools on the physical device where driver changes can be properly applied without triggering a BSOD. This resolves the 0x0000007B INACCESSIBLE_BOOT_DEVICE error caused by mismatched storage controller drivers introduced during the tools update. After updating the tools on the physical device, a fresh vDisk can be created from the updated master target device.

BRestart the Stream service.

Restarting the Stream service manages vDisk streaming delivery to target devices but does not resolve a STOP error caused by incompatible storage controller drivers introduced during a XenServer tools update.

CDowngrade the XenServer tools.

Downgrading XenServer tools is not a supported resolution and would not fix the underlying driver compatibility state that causes the 0x0000007B error on the existing vDisk.

DChange the write cache location to cache on server.

Changing the write cache location to server-side cache affects where writes are stored during streaming but does not address the storage controller driver conflict that triggers the STOP 0x0000007B error.

Concept tested: Citrix PVS Reverse Imaging to fix vDisk driver errors

Source: https://docs.citrix.com/en-us/provisioning/current-release/configure/configure-vdisks.html

Topics

#Provisioning Services#vDisk#XenServer tools#STOP error

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