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A block-level cache which complements the higher-level Windows NT file-system cache. Caches the most frequently used blocks and supports optional deferred-writing, for blazingly fast disk performance on very large disk partitions or volumes.
A hybrid cache which mirrors an entire disk partition or volume. Yields RamDisk-like read performance, without added risk of data loss. Features optional deferred-write mode for accelerated write performance.
SuperCache implements patented block-level caching technology to raise system performance 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 from memory rather than from disk. SuperCache 4?s core component is a storage volume filter driver which resides in the storage stack just above the storage volume class drivers.
SuperCache intelligently stores frequently used disk data in system memory. The memory used to store the data is called a cache. SuperCache 4 intercepts requests for disk data and, when possible, fulfills the request using the cache instead of requesting data from the disk. When data is read from or written to the cache, the performance is similar to a RAM disk – extremely fast.
Unlike our RamDisk or SuperVolume products, some requested data will 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.”
SuperVolume is a sophisticated yet elegant solution to the disk I/O bottleneck. Employing a patented hybrid cache, it mirrors an entire disk partition or volume in system memory (RAM). SuperVolume 4 4 is implemented as a storage volume filter driver, residing in the storage stack just above the storage volume drivers.
SuperVolume reserves a portion of system memory that is the same size as its associated storage partition or volume. This area of memory is a kind of cache, and SuperVolume 4 maintains an exact image of the associated partition or volume in the cache. All data residing in the partition or volume is also present in the cache. The file system, drive letter, and all other attributes of the original partition or volume are preserved.
SuperVolume intercepts read and write requests to the disk partition or volume. All read requests can be fulfilled by reading from the cache, not from the disk. This results in read performance at the same level as a RAM disk. However, unlike a RAM disk, the data is safely stored on a physical disk.
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