mirroring


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mirroring

mirroring

Duplicating data onto another computer at another location. Mirroring is performed for backup purposes or to be in closer proximity to the user. See disk mirroring and replication.
References in periodicals archive ?
In addition to driving down the cost of mirroring data over long distances by eliminating the need for third-party routers and other devices, each pair of SVM appliances can mirror up to 9TB of data per day.
Or, for more information about StoreAge's multiMirror any-to-any data mirroring solution, please visit the StoreAge web site at www.
Combining these robust servers with the data protection expertise of Legato and the Legato Mirroring Extension for Microsoft Cluster Service will offer our customers a much needed disaster tolerance clustering solution," stated Don Johnson, vice president and general manager, Unisys Enterprise Server Business.
Microsoft is excited that Legato's Mirroring Extension product offers our mutual customers additional flexibility when deploying mission-critical applications on Microsoft Cluster Service," said Michael Gambier, Group Product Manager for Enterprise Server Products at Microsoft Corp.
Scalability: SANs are designed to support multiple host severs, but as the number of hosts in a SAN increases, the synchronous mirroring infrastructure may not easily or economically scale to accommodate the increased data traffic.
CLARiiON Remote Mirroring protects customers' software investment and lowers the total cost of ownership, including reduced support and maintenance costs, by employing already-installed host-based mirroring packages, such as Sun Enterprise Volume Manager and Windows NT Disk Administrator.
An enterprise customer can use a high-end storage system for their primary storage and, with the iSCSI switch's mirroring capability, implement a low cost remote replication solution using lower cost simple disk systems without degradation of performance levels.
Mirroring is performed at the disk block level, ensuring the continuous protection of both file systems and databases on raw partitions.
Availability: The ability to access replicated data at any time is a fundamental requirement of data mirroring solutions.
Other aspects of international mirroring available are: secure electronic commerce and transactions, including credit card transactions; and the ability to display advertising banners on a Web site based on individual country.
Due to the combination of striping (for large files) and mirroring (for small files), plus its lack of parity (for frequent writes), RAID-1+0 often exhibits higher throughput than RAID-1 and lower response times than RAID-5.
By far, the most common use of disk-based mirroring is online simultaneous point in time backups (Fig 2).