disk mirroring

(redirected from RAID mirroring)

disk mirroring

(hardware, storage)
Use of one or more mirrors of a hard disk.

disk mirroring

The recording of redundant data for fault tolerant operation. Data are written on two partitions of the same disk or on two separate disks within the same system. Disk mirroring uses the same controller. RAID 1 provides mirroring, which was first accomplished only with SCSI drives, but later with ATA (IDE) drives. See disk duplexing and RAID.


Mirroring on a Budget
Arco was one of the first companies to offer RAID 1 mirroring using two inexpensive ATA (IDE) drives. The motherboard cable plugs into a PCI card or the drive bay version (above), and two cables go out to primary and secondary drives. If one fails, the other takes over. (Image courtesy of Arco Computer Products, Inc., www.arcoide.com)





Mirroring on a Budget
Arco was one of the first companies to offer RAID 1 mirroring using two inexpensive ATA (IDE) drives. The motherboard cable plugs into a PCI card or the drive bay version (above), and two cables go out to primary and secondary drives. If one fails, the other takes over. (Image courtesy of Arco Computer Products, Inc., www.arcoide.com)
References in periodicals archive ?
The WD My Book product range features RAID mirroring and auto backup facilities for users with large storage capacities ranging from 500GB to 2TB.
Using RAID mirroring technology, this system automatically and continuously duplicates your data for the ultimate in data protection.
Integrated RAID mirroring storage solutions for continuous backup of vital information;
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Software RAID mirroring for protection of important data
It is also implementing full hardware RAID mirroring through the EMC deal.
It's ideal for any situation where the reliability of hardware RAID mirroring is required but space or resources aren't available," says Itzik Levy, company CEO.
The new platforms leverage the latest advancements in technologies for rapid deep packet inspection and high network resilience, such as high-capacity SATA hard drives with RAID mirroring, hyper-threaded CPUs, fast memory arrays, hardware/LAN bypass circuitry, gigabit networking and high-throughput I/O circuitry.
Reliability of RAID today is rock solid, either through the use of RAID mirroring, or with "hot standby" disk drives that can automatically reconstruct data from a failed drive in a RAID 3 or 5 configuration.
Data Protection Solutions by Arco has been providing RAID mirroring and drive backup hardware since 1989 and is a recognized leader in providing specialty and OEM mirroring and backup solutions.
The company has been providing RAID mirroring and computer backup and restore products since 1989, first through its DupliDisk hardware and now through its enhanced EzRaid, EzBackup and EzCopy disk-to-disk (D2D) product lines.
Both new products are equipped with a 533MHz system bus, new 533MHz Intel Xeon processors and integrated U320 SCSI controllers with embedded RAID mirroring capability.