| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 3,586,634,645 visitors served. |
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Raid |
Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Acronyms, Wikipedia, Hutchinson | 0.01 sec. |
|
|
RAID (Redundant Array of Independent Disks) A disk subsystem that increases performance or provides fault tolerance or both. RAID uses two or more regular hard drives and a RAID controller, which is plugged into motherboards that do not have RAID circuits. Today, most motherboards have built-in RAID but not necessarily every RAID configuration (see below). In the past, RAID has also been accomplished by software only but was much slower. In the late 1980s, the "I" in RAID stood for "inexpensive" but was later changed to "independent."In large storage area networks (SANs), floor-standing RAID units are common with terabytes of storage and huge amounts of cache memory. RAID is also used in desktop computers by gamers for speed and by business users for reliability. Following are the various RAID configurations. See NAS and SAN. RAID 0 - Disk Striping for Performance (Popular) Widely used for gaming, disk striping interleaves data across multiple drives for performance. However, there are no safeguards against failure. See RAID 0. RAID 1 - Mirroring for Fault Tolerance (Popular) Widely used, RAID 1 writes two drives at the same time. It provides the highest reliability but doubles the number of drives needed. RAID 10 combines RAID 1 mirroring with RAID 0 striping for both safety and performance. See RAID 1 and RAID 10. RAID 3 - Speed and Fault Tolerance Data are striped across three or more drives for performance, and parity is computed for safety. Similar to RAID 3, RAID 4 uses block level striping but is not as popular. See RAID 3 and RAID parity. RAID 5 - Speed and Fault Tolerance (Popular) Data are striped across three or more drives for performance, and parity is computed for safety. RAID 5 is similar to RAID 3, except that the parity is distributed to all drives. RAID 6 offers more reliability than RAID 5 by performing more parity computations. For more details, see RAID 5.
RAID [rād] (computer science) A group of hard disks that operate together to improve performance or provide fault tolerance and error recovery through data striping, mirroring, and other techniques. Derived from redundant array of inexpensive disks.
Raid a penetration into the enemy rear by mobile tank, mechanized, cavalry, and partisan units for the purpose of inflicting losses; destroying important installations, such as bridges, airfields, railroads, communication lines, warehouses, and supply bases; disrupting the work of supply and evacuation routes; supporting or organizing partisan movements; and diverting enemy forces. Raids have been used in many wars. The raids by Russian cavalry detachments, such as D. V. Davydov and M. I. Platov’s cossacks in the rear of the French Army in the Patriotic War of 1812, and the large-scale cavalry raids of the Civil War of 1918–20 are well known. During the Great Patriotic War (1941–45) raids were made by Soviet cavalry units, for example, the raid by General P. A. Belov’s cavalry corps in 1942, and by many partisan units. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| Mentioned in | ? | References in classic literature | ? | Encyclopedia browser | ? | Full browser | ? | |||
|---|---|---|---|---|---|---|---|---|---|---|
No references found | In the Book of the Dun Cow, and in another old book called the Book of Leinster, there is written the great Irish legend called the Tain Bo Chuailgne or the Cattle Raid of Cooley. When he, Ngurn, had been a young man, the tribes beyond the grass lands had made a war raid. The injuries to Dak Kova had delayed the march so greatly that it was decided to give up the expedition, which was a raid upon a small Thark community in retaliation for the destruction of the incubator, until after the great games, and the entire body of warriors, ten thousand in number, turned back toward Warhoon. |
Raid |
Rai TV Italian Rai'atea RAI-CI Rai-Elenovka RAI-MH RAI-TV RAI3 Raia Raia Raiae Raiatea Raïatea RAIB RAIBC Raibolini, Francesco Raibow Trout Raibow Trout Raibow Trout RAIC RAICAR RAICATS Raices de Esperanza RAICG Raichev, Georgi Mikhalev Raichikhinsk Raichur RAICM Raid RAID 0RAID 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 Advisory Board RAID array 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 | |||||||
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|