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hot spare |
Also found in: Acronyms, Wikipedia | 0.07 sec. |
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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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? Mentioned in | ? References in periodicals archive | |
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Six hot-plug SATA and SAS hard drives provide RAID and RAID 5 + hot spare capability for data protection. Some companies are under the illusion that adding a hot spare will protect their data if a hard disk fails. High availability and dual-level RAID protection: Leveraging optional RapidScale HA technology, Rackable Systems' RapidScale clustered file system solution delivers two independent levels of RAID protection a hardware RAID with optional hot spare inside each appliance and storage cluster level RAID across appliances. |
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hot spare
