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Promise Technology ATA RAID controller. A simple disk array controller may fit inside a computer, either as a PCI/PCIe expansion card or just built onto a motherboard. Such a controller usually provides host bus adapter (HBA) functionality itself to save physical space. Hence it is sometimes called a RAID adapter.
Diagram of a RAID 1 setup. RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks; a classic RAID 1 mirrored pair contains two disks.This configuration offers no parity, striping, or spanning of disk space across multiple disks, since the data is mirrored on all disks belonging to the array, and the array can only be as big as the smallest member disk.
In 1993, the company began its pivot to designing and selling RAID controllers and LAN management software to appeal to the file server and workstation markets, finding much more success here than in their earlier ventures. [18] [17] By the end of 1995, Mylex cornered 75 percent of the RAID controller market and exceeded $100 million in revenue.
RAID (/ r eɪ d /; redundant array of inexpensive disks or redundant array of independent disks) [1] [2] is a data storage virtualization technology that combines multiple physical data storage components into one or more logical units for the purposes of data redundancy, performance improvement, or both.
Dell uses the name PowerEdge RAID Controller (PERC) for proprietary versions of its RAID computer storage controllers. [16] The related software in the PERC Fault Management Suite offered facilities such as the Background Patrol read, which aims to fix bad sectors on online RAID disks running under some of the PERC controllers around 2006. [17]
RAID levels 0,1,5,6,10; Distributed RAID (DRAID), i.e. DRAID-5 and DRAID-6; FlashCopy provides Snapshots with several combinations of these attributes: multiple, incremental, independent, space-efficient, immediately writable, or cascaded; Data Migration: data can be moved between all virtualized storage (both internal and external) with no ...
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A Dell PowerEdge RAID Controller, or Dell PERC, is a series of RAID, disk array controllers made by Dell for its PowerEdge server computers. [ 1 ] [ 2 ] The controllers support SAS and SATA hard disk drives (HDDs) and solid-state drives (SSDs).