Thanks James,
That's very good info.
-Georgi
-----Original Message-----
From: cobbler-bounces(a)lists.fedorahosted.org
[mailto:cobbler-bounces@lists.fedorahosted.org] On Behalf Of
James_Martin(a)ao.uscourts.gov
Sent: Friday, August 01, 2008 11:07
To: cobbler mailing list
Subject: RE: More details on system imaging -- livecd based proposal
cobbler-bounces(a)lists.fedorahosted.org wrote on 08/01/2008 11:45:36 AM:
"Hristov, Georgi" <Georgi.Hristov(a)fnis.com>
Sent by: cobbler-bounces(a)lists.fedorahosted.org
08/01/2008 11:45 AM
Subject
RE: More details on system imaging -- livecd based proposal
The problem with doing a clone on the file-system level is that it
takes
way too much space. You might have a system that has 300G file
system
and has only 5G of useful data. Even compressing the file system image
will not save you that much space (unless you write zeros to the
unused
space on the file system before you archive and compress it).
-snip
Perhaps you need to read about partimage, which is the proposed tool do
the
the cloning. From
partimage.org:
"Partimage will only copy data from the used portions of the partition.
For
speed and efficiency, free blocks are not written to the image file.
This
is unlike the 'dd' command, which also copies empty blocks. Partimage
also
works for large, very full partitions. For example, a full 1 GB
partition
can be compressed with gzip down to 400MB. "
James S. Martin, RHCE
Contractor
Administrative Office of the United States Courts
Washington, DC
(202) 502-2394
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