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 ?
n] also significantly reduces the vulnerability inherent in hot spares by allowing administrators to rebuild or replace several defective disk drives--or even expand the system or level of protection--without interrupting operations or restricting access.
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.
Hardware redundancy, failover to hot spare storage modules, pathing, RAID, and replication are all options offered by SAN solutions.
4 ghz, 25 mb cache, 64 gb ddr4 ram, 2 x 300 gb sas in raid 1 for loading operating system, 5 x 1 tb nlsas in raid 5 with 1 hot spare, microsoft windows 2016 standard operating system.
The new models support RAID 0, 1, 10, 5, 6, 5+ hot spare, 6+ hot spare, 10+ hot spare, single disk, JBOD, and the new Global Hot Spare feature that allows a spare drive to flexibly replace a failed drive on any RAID volume on the NAS for automatic RAID data rebuilding.
Newer storage devices also have high availability standard features such as multiple global hot spare drives and robust power redundancy features, and present great value for the money in centralized systems.
QNAP NAS servers are ideal for simple website hosting, ultra-high performance RAID storage supporting RAID 0, 1, 5, 6, 5+ hot spare and 6+hot spare (5 drive and higher models), stand-alone file downloading, network-wide backups, printer sharing, video surveillance, and a whole lot more.