SK0-003 · Question #714
Which of the following MOST correctly describes a hot spare?
The correct answer is C. A drive assigned to an array that will automatically be used to rebuild a failed array drive. A hot spare is a pre-configured, idle drive within a RAID array that automatically replaces a failed drive and begins the rebuild process without manual intervention.
Question
Which of the following MOST correctly describes a hot spare?
Options
- AA drive assigned to an array that will only hold parity information used for rebuilding a failed array drive.
- BAn external hard drive to which all data is replicated to for recovery in the event of a failure.
- CA drive assigned to an array that will automatically be used to rebuild a failed array drive.
- DAn extra drive purchased and stored in the parts cabinet to replace failed drives.
How the community answered
(21 responses)- A5% (1)
- C90% (19)
- D5% (1)
Why each option
A hot spare is a pre-configured, idle drive within a RAID array that automatically replaces a failed drive and begins the rebuild process without manual intervention.
This describes a drive primarily used for parity in RAID levels like RAID 5 or 6, not a hot spare's function of replacing a failed drive.
This describes a backup or replication strategy to an external device, not a hot spare within a RAID array.
A hot spare is a drive that is part of a RAID array but remains unused until an active drive in the array fails. Upon detecting a failure, the RAID controller automatically activates the hot spare, beginning the data rebuild process to restore fault tolerance to the array.
This describes a cold spare, which requires manual installation and configuration after a failure, unlike an automated hot spare.
Concept tested: Hot spare function in RAID
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