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.
Integrated RAID mirroring storage solutions for continuous backup of vital information;
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The i1500 adds high-availability features including dual hot-swappable power supplies and RAID mirroring of the OS and metadata.
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.
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.
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.
Further, DashCenter is now offering its DashMirror(R) data replication technology to offer RAID mirroring and database replication.