I have a small network with a central backup server; backup has been to
hard drive, compressed.
I have begun experimenting with using dump(8) to split partitions in to
manageable units for burning onto DVD+RW.
I am posting to see if anyone else is using dump with optical media; I'm
interested in finding out whether there is a better way than how I am
currently accomplishing it.
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I have been using ISO9660, and carving each DVD+RW disc into 2 logical dump
volumes to get past ISO9660 filesize limitations. I've also been using a hard
drive as temporary storage. And I have been using 32kb blocksizes, since that
is what growisofs uses. For example:
dump -0B 2294928 -b 32 -f file1,file2,file3,... /path/to/backups
growisofs -Z /dev/rcd0c -r file1 file2
growisofs -Z /dev/rcd0c -r file3 file4
growisofs -Z /dev/rcd0c -r file5 ...
I have yet to figure out how to burn dump volumes directly to the disc without
a filesystem, and then *cleanly* restore. For example:
dump -0B 4590208 -b 2 -f /dev/rcd0c /path/to/backups
In addition, I have been forced to use hard drive as working space. I have
not been able to get named pipes working with dump, and it will not split
std output into volumes.
Does anyone have a better way?
-Josh-
