hot spare


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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.
References in periodicals archive ?
Some companies are under the illusion that adding a hot spare will protect their data if a hard disk fails.
New features added with firmware version 2.0 include support for Macintosh clients, global hot spares, Gigabit Ethernet, file level security for NFS environments, VERITAS Backup Exec(tm) agent and support for basic tape drive autoloaders.
It allows companies to deploy data protection solutions with greater security, reliability, capacity and affordability than conventional RAID, hybrid and "hot spare" configurations.
If the configuration includes a hot spare disk drive, this activity can take place without the user even noticing.
The system offers hot-swappable drives; RAID levels 0, 1, 5 and 5 plus hot spare; gigabit LAN, dual Ethernet; and multiple RAID volume support.
The RAIDIX functionality includes hot spare pools, flexible support for SAN (Fibre Channel, InfiniBand, iSCSI, 12G SAS) и NAS (NFS, SMB, AFP, FTP) interfaces, compatibility with Аррlе, AJA, and Blackmagic Design equipment, Хsan, metaSAN, StorNext, FalconStor environments, as well as professional editing applications (Adobe Premiere, Final Cut Pro, Avid, Smoke, DaVinci Resolve, SGO Mistika, etc.).
Hardware redundancy, failover to hot spare storage modules, pathing, RAID, and replication are all options offered by SAN solutions.
most hard-drive failures), hot spare (an extra disk taking over for a failed disk) and hot swap (the ability to take out and replace that same disk without shutting down operations).