classiccmp server hardware

[David V. Corbin]

>>> der Mouse Wrote:
>>> 
>>> I have "live" mirroring of my disks - all disk writes are 
>>> mirrored over the net in real time to images on a big 
>>> backup drive on another machine.  (Or near-real-time, if 
>>> the writer is producing data faster than the mirroring can 
>>> deal with it - the software goes to some lengths to handle 
>>> that case well.)  It doesn't cause load problems in normal 
>>> use because the network load it imposes is spread out 
>>> throughout the day, becoming visible only when doing a data 
>>> transfer over the net to disk from a source that can run 
>>> the network at least half-wide-open.

Just out of curiousity... Is this done on a file by file basis [i.e. if the
file is changed, the file is copied...], or some other more granular means?

I ask because most of my data operations involve many relatively small
writes to varying sections of very large files. 

Thanks for the info...