disk mirroring

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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)
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iRep replication software further protects data against loss by facilitating data mirroring, distribution and consolidation between systems locally or at offsite locations.
Fortunately, a new generation of affordable data mirroring solutions has emerged that brings sophisticated DR capabilities to virtually any size organization.
liffe Market Solutions to connect its SANs over long distances, making it useful for business continuity applications such as data mirroring, asynchronous data replication, and remote backup.
Local and Remote Synchronous Data Mirroring and Failover
Availability: The ability to access replicated data at any time is a fundamental requirement of data mirroring solutions.