HP0-J73 · Question #122
A company is using several RAID 5 volumes for their data. To decrease the risk of a disk failure, they want to add a single drive to their HP StoreSure 2000 Storage array as an automatic replacement f
The correct answer is C. Global online spare. A global online spare is a dedicated drive in an array that automatically replaces any failed drive in any RAID set within that enclosure without administrator intervention.
Question
A company is using several RAID 5 volumes for their data. To decrease the risk of a disk failure, they want to add a single drive to their HP StoreSure 2000 Storage array as an automatic replacement for the failed disk. What is the name of the automatic replacement?
Exhibit
Options
- AArray safety disk
- BStandby RAID LUN
- CGlobal online spare
- DHot swap disk
How the community answered
(26 responses)- A4% (1)
- C96% (25)
Why each option
A global online spare is a dedicated drive in an array that automatically replaces any failed drive in any RAID set within that enclosure without administrator intervention.
Array safety disk is not a standard HP or industry term for an automatic RAID replacement drive.
Standby RAID LUN refers to a logical unit concept, not a physical spare drive mechanism for automatic failure replacement.
A global online spare (also called a global hot spare) is pre-assigned to an array controller and sits idle until any RAID volume in the array experiences a drive failure. Upon detection of a failure, the controller automatically begins a rebuild onto the spare drive, minimizing the window of data vulnerability across multiple RAID groups simultaneously.
Hot swap describes the ability to physically remove and insert a drive while the system is powered on, but does not by itself automate the RAID rebuild process.
Concept tested: Global online spare drive in HP storage arrays
Source: https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c00729234
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