[Wlug] interesting backups problem

Eric Stein eastein at WPI.EDU
Sun Feb 18 20:18:25 EST 2007


Hi all,

I've got an interesting issue with disk usage.  I have a hard disk image 
(from dd) stored on a server, and it needs to be compressed it to make 
room for other data.  The image is 160 GB, but I only have 30 GB of free 
space to work with; the data isn't compressible enough to fit in 30 GB 
in the meantime.  I don't need the image right now and having only a 
compressed copy is perfectly fine.  How can I compress the image while 
simultaneously deleting the old data?  I can think of a way to do it 
using perl, dd, and some other tools, but I'd much prefer to do it the 
"right" way if there is one.

Eric


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