> Nicolas Alvarez wrote:
>> With dd you could copy any section of the file into a new one.
> 
> But again, it would take a long time to copy that.  The point is to not 
> slog a half a terabyte of data from one disk to another in order to do 
> the processing.
> 
> It works out OK. It just takes surprisingly long. :-)  It's automated at 
> this point, unless I specifically take it off automation, so it's not 
> like I'm waiting for it. It just kind of surprised me that deleting a 
> big file could take over a minute. Must be the ext3 journaling or 
> something going on. Ext was never really optimized for big files.

What do you do with the small section once you cut it? Can't you use 
pipes to avoid so many temporary files?

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