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Related to Disk mirroring: raid, RAID 1
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It continuously captures data as it is written, maintaining a complete data history that can be quickly accessed and recovered back to the protected server to any point in time for continuous protection, without the capacity requirements or administration overhead of disk mirroring.
For example, using existing IP networks between geographically separated facilities, companies can support their daily production network and real-time synchronous data replication and disk mirroring applications by day, and perform scheduled, asynchronous tape backups during evenings and weekends, when excess bandwidth is available.
Using synchronous disk mirroring technologies across a distance presents a similar problem.
Such conversions cause network latency or traffic bottlenecks that slow the data transmission and stifle key applications such as disk mirroring.
Wide range of serviceability, availability and management features, including Ethernet aggregation and failover and RAID1 and DRBD disk mirroring support
This storage may be a shared SCSI disk drive or virtual shared storage through a volume of file level disk mirroring software.
Disk mirroring tools are accomplishing such things right now and so-called "snapshot" tools are following right along, but disk drives are anything but invulnerable.
The solutions deployed by IBM in this case involve disk mirroring to provide the highest availability solution for protecting information, remote backup, and FICON channel extension over MAN/WAN between different cities.
While disk mirroring is often considered a "safety" process, to be used only to protect data, this view looks to the past, not toward the future.
Storage methodologies supported by the chip's dual SATA disk interface include disk striping (RAID0), disk mirroring (RAID1) and disk spanning.
However, applications such as disk mirroring and backup/restore demand greater distances.
Accordance Systems' ARAID is the first low-cost RAID system of its class disk mirroring all computer files for disaster recovery and data backup.