Distributed Cache RAID architecture offers the advantages of Global Cache storage solutions such as Symmetrix(tm), but at the much lower costs associated with Local Cache storage solutions utilizing more affordable fibre channel, SCSI or SATA RAID arrays.
CorData's Storage Gateway Server includes an optional "Hot Zone" capability, utilizing a customer assigned area of high speed storage media such as local RAM, solid-state disk, or high performance fibre channel disk storage, as a block caching resource.
Storage activity is evaluated block-by-block in real-time, and the most active storage blocks under management anywhere on the SAN are migrated into this "Hot Zone" media for read and/or write caching, reducing I/O latency and increasing the performance of the overall storage network dramatically.
High performance cache resources are dynamically allocated, and blocks that no longer qualify for caching are migrated back onto the original media. The cost of caching media resource is amortized across the entire storage network. HotZone makes it possible to deploy much lower cost storage media for the majority of the enterprise's requirements that do not require high-performance storage media all the time; significantly reducing the total cost of ownership of the SAN.
A storage network design based upon Independently scalable bulk storage, fast storage, solid state storage, and SAN connectivity delivers a highly flexible infrastructure while preserving the simplicity of a centralized management domain for the entire SAN.
