Until now each following generation of south bridges from intel brought some update in plan of disk interfaces support and operation RAID modes . The current generation of south bridges ICH8R supports SATA-300 and eSATA with “hot connection”, modes RAID 0, 1, 5 and 10, the technology Of matrix RAID. However, what new will bring the south bridges ICH9R, produced simultaneously with chipset of family bearlake in first half of 2007?
Associates explained that these south bridges will obtain support to the technology rapid recover and Command based port multiplier. The first one deal with hard disks mirror, which will make possible to rapidly restore entire section or selected data with the failure of principal disk . The synchronization of data is accelerated due to the application of the so-called “incremental” methods of spare copying, with which remain only changed data. As the hard disk backup can cbe done in external storage, connected to the port of eSATA.

This is interesting,that this technology will be also availble in the mobile south bridge ICH8ME, which will leave in the second quarter of 2007.
The technology port multiplier makes possible to connect to one cable serial ATA upto 15 hard disks. A similar idea was earlier widely advertized by company VIA, but special propagation so did not receive. Unfortunately, used in the south bridges ICH9R the version of such technology provides access only to one hard disk at the specific moment of time. . The technology became more complex to realize , which implies to several access disks simultaneously, possesses higher cost and more higher central processor loads , therefore it can be rejected. Related Products :
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