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hot spare
(redirected from Hot spare disk)

    Also found in: Wikipedia 0.01 sec.
hot spare
An extra disk drive in a RAID configuration that is ready and waiting to be put into action automatically when another drive fails. Using the RAID algorithms, the missing data from the faulty drive is reconstructed and written to the hot spare. When the bad drive is replaced, it then becomes the hot spare. If a hot spare is not used, then the faulty drive must be manually removed and replaced with a new one. See RAID and hot swap.
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What''s more, there is a pair of hot spare disks which get automatically commissioned if one of the primary 12 disks fails.
Key Features of SANServe Managed Hosting by Navjot Kaur / Computers and Internet community
If the configuration includes a hot spare disk drive, this activity can take place without the user even noticing.
Client computer storage consolidation by Harbin, Donald / Computer Technology Review
The unit also configured with: -- Two, 2-gigabyte Fibre Channel ports for host and disk interface -- Fully redundant power, fans, battery back-up, storage processors, cables -- Support for up to three hot spare disk drives.
NEC Solutions America Enhances `Simplified High Availability' by ... by Business Wire
 
 
 
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