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SOLID STATE STORAGE

RAM RAID FC

RAM RAID FC is simply the fastest disk sub system available commercially. The RAM RAID FC is a disk array system which is constructed of solid state disks.

Solid State Disks act like standard disk drives but are use RAM as the storage medium. RAM RAID uses solid state disks as the initial storage medium but back it up on to standard drives as well.

Most I/ 0 bottlenecks are caused by "hot" files, unusually active files that receive a disproportionate percentage of a system's overall I/0 requesls.... Studies by Princeton University and by Digital Equipment Corporation have shown that 5O% of disk accesses are to less than 5% of the megabytes of the on-line data.. These data are easily identifiable, and are finite in number.

Because of their access frequency, these hot files will tend to reside in cache a large portion of the time. If the size of this set of frequently accessed data is larger than the cache, "thrashing" (constant purging and reloading of data into the cache) will result, leading to lower performance. Moving these files to SSDs - where they can always be accessed near- instantaneously - can dramatically improve user-level response time and eliminate many of today's most common storage bottlenecks. Some examples of these hot files are:

* Database files such as root, snapshot, index and frequently accessed data files.

* Operating system files such as user rights and authorization files, job controller control files, common code libraries and the executable images of frequently used operating system commands.

To maximize throughput RAM-RAID has been designed with a massively parallel architecture.

The system utilizes up to 5 parallel Ultra SCSI RAID controllers in much the same way as multiprocessor systems use multiple CPU elements. Individually each RAID controller features a powerful RISC processor capable of over 7700 I/O operations per second. the combined parallel performance can reach a stunning 45,000 I/O operations per second. This is simply the fastest general purpose I/O sub-system on the market, capable of serving the most powerful multiprocessor servers and the most demanding client server applications.

SOLID STATE DISK

SOLID STATE STORAGE

RAM STORAGE

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