RRDtool (Round Robin Database Tool) is time-series
data storage and graphing utility created by the
author of MRTG. Using RRDtool, you can write your
own MRTG-like tools in a matter minutes with only
a few lines of Perl or shell code.
A partition or disk cloning tool similar to Symantec Ghost.
A .NET library that provides an abstraction over persistent data stores.