RAID parity

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RAID parity

Parity computations are used in RAID drive arrays for fault tolerance by calculating the data in two drives and storing the results on a third. The parity is computed by XOR'ing a bit from drive 1 with a bit from drive 2 and storing the result on drive 3 (to learn about XOR, see OR). After a failed drive is replaced, the RAID controller rebuilds the lost data from the other two drives. RAID systems often have a "hot" spare drive ready and waiting to replace a drive that fails. See RAID.

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No references found			Sun's enterprise-class Solaris OS yields high performance and security benefits for the customer, while, the new 128-bit ZFS file system delivers storage pooling, RAID parity, check summing, data integrity, and additional performance -- all of which are VTL optimizations only available through this new offering. Sun Microsystems Adds Low-Cost Virtual Tape Library for Open Systems ... by PR Newswire A single pool of storage means that data is stored across all of the drives within the storage system unlike traditional storage systems that have a finite number of drives within a RAID parity group. Clustered network storage by Asaro, Tony / Computer Technology Review It contains a proven set of validated peripheral components to reduce design time, including a 64-bit PCI-to-PCI bridge, an SDRAM controller and a high-speed application accelerator unit for RAID parity generation. New Intel I/O Chipset Triples Speed of Handling Data in Internet ... by Business Wire			Rahbek, Knud Lyne Rahel Rahimyar Khan Rahman, Mujibur Rahman, Tunku Abdul Rahva Haal Rahva Hääl Rahway Rai'atea Rai-Elenovka RAI-TV Raibolini, Francesco Raichev, Georgi Mikhalev Raichikhinsk Raichur Raid RAID 0 RAID 1 RAID 10 RAID 3 RAID 5 RAID Advisory Board RAID controller Raid of Ruthven Raid on Redding Ridge RAID parity Raider Raiffeisen, Friedrich Wilhelm Raigorodok Raikes, Robert Raiki Gorodishche Raikin, Arkadii Raikin, Arkadii Isaakovich Raiko Ivanov Daskalov Raikov, Boris Raikov, Boris Evgenevich Rail rail anchor rail bead rail bender rail bolt rail capacity rail clip rail crane Rail Fastening rail fence rail joint Rail Loader rail pile rail steel rail steel reinforcement			raid raid RAID 0 RAID 0+1 RAID 1 RAID 1+0 RAID 10 RAID 3 RAID 4 RAID 5 RAID 6 RAID Advisory Board RAID Advisory Board RAID Advisory Board RAID array RAID array RAID array RAID array RAID controller Raid Damage per Second RAID Expansion Unit Raid Leader RAID Management Utility RAID mirror RAID mirroring Raid of Ruthven Raid on A Chip Raid on Motherboard Raid on Redding Ridge Raid over the River RAID parity Raid Provence Extrème raid report Raid the North Extreme Raid Warning RAID0 RAID1 RAID10 RAID3 RAID4 RAID5 RAID6 RAIDARS RAIDE raided raided raided raided raider raider raider raider raider raider Raiders Raiders Raiders Raiders Raiders Raiders News Update Raiders of the Force

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