SuperCache and SuperCache II use
patented block-level caching technology to raise system performance
far beyond that of the NT file-level cache alone. It breaks the disk I/O
bottleneck by using the server's system memory to store the most frequently
used data, executing read and write requests in memory rather than on disk.
SuperCache is implemented as a storage volume filter driver, residing in the
storage stack just above the storage volume class drivers.
How it works:
SuperCache intelligently stores frequently used disk data in system memory.
It stores the data in an area called its cache. It intercepts requests for
disk data and, when possible, fulfills the request using the cache instead
of requesting data from the disk. When data comes from or goes to the cache,
the performance is similar to a RAM disk – extremely fast.
Unlike our software
RamDisk or
SuperVolume products, requested data will probably not
always be present in the cache. Although data for all requests
come from or go to the cache, some will also involve the disk.
Nonetheless, depending upon the size of the cache and the nature
of the disk I/O requests, performance accelerations can be
significant and often dramatic.
