Product Suite / Desktops
SuperCache   Stores the most frequently read disk data in RAM. Applications that frequently read large amounts of data from the disk will receive much of their data from RAM rather than disk, thus greatly increasing their performance. Also supports writing disk data immediately to RAM and later to the disk (deferred-write, or lazywrite mode), accelerating applications that frequently write large amounts of data to the disk. SuperCache, a block-level cache, complements the higher-level Windows NT file-system cache.
SuperVolume   Maintains all disk data in RAM. Also allows for writing disk data immediately to RAM and later to disk (deferred-write, or lazywrite mode). All reads to and writes from the disk actually occur in RAM, at the fastest transfer speeds possible. However, all data is maintained both on the hard drive as well as in RAM (like a mirror), so it is safely retained between boots.
RamDisk   Creates a disk in RAM. All data is read from and written to RAM, not a hard drive – the fastest solution available. RAM disk performance is limited only by processor and memory throughput.
RamDisk Plus   Builds on the RamDisk product, offering automatic disk image save at system shutdown, and disk image load at system startup.


Product comparison

Product/
Features		 SuperCache SuperVolume
(SuperSpeed) 		RamDisk RamDisk
Plus
Security,Privacy     Checkmark  
Persistent storage Checkmark Checkmark   Checkmark Sub1
Optional deferred-writing Checkmark Checkmark    
Selectable
read-ahead		 Checkmark      
Selectable cache page-size Checkmark      
Supports datasets larger than available physical memory Checkmark      
Checkmark Sub1 Persistence is realized by saving the entire virtual disk’s contents at system shutdown and reloading it at system startup.

Citrix   HP   IBM

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U.S. Patents Nos. 5577226, 5606681, 5918244, 6370615, 6629201, 6651136, 7017013, 7039767, 7111129 and other worldwide patents pending.

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