A single disk in a vSAN disk group suffers from an unrecoverable hardware failure. This causes vSAN to set the health status for all disks in the group to Permanent disk loss, indicating disk…

The correct answer is D. The affected vSAN node is offline. If a single disk in a vSAN disk group suffers from an unrecoverable hardware failure, vSAN will mark all disks in the group with a Permanent disk loss status. This is because vSAN uses a technique called "failure domains" to ensure data availability and protect against data…

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Question

A single disk in a vSAN disk group suffers from an unrecoverable hardware failure. This causes vSAN to set the health status for all disks in the group to Permanent disk loss, indicating disk failure. All other disks, however, have not suffered from a hardware failure. Why would vSAN mark all disks in this manner?

Options

AThe vSAN disk management service has failed.
BThe key management server is offline.
CDeduplication and compression are enabled.
DThe affected vSAN node is offline.

How the community answered

(25 responses)

A
8% (2)
B
16% (4)
C
4% (1)
D
72% (18)

Explanation

If a single disk in a vSAN disk group suffers from an unrecoverable hardware failure, vSAN will mark all disks in the group with a Permanent disk loss status. This is because vSAN uses a technique called "failure domains" to ensure data availability and protect against data loss. A failure domain is a group of disks that are considered a single point of failure. If a disk in a failure domain fails, all other disks in that failure domain are also considered failed. This is to protect against further data loss in the event of a second failure in the same failure domain.

Topics

#disk group failure#permanent disk loss#node offline#vSAN health

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