On Mon, December 31, 2007 5:16 pm, Carlos E. R. wrote:
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The Monday 2007-12-31 at 04:16 -0500, Aaron Kulkis wrote:
But I believe plain dar is. I found it to slow, though. I wish rsync could do a little compresion...
Compression is good until you get an erroneous bit.
then it makes your life miserable.
Did you ever use the old PCBackup for Dos, from PC Tools (Central Point Software)? I have backups made in 80 5¼ floppies and still recoverable. They are compressed, yes, but they also contain recovery data to repair read errors. In fact, they do have sectors with errors, and the software is able to get the whole good data out of them, about twenty years later. And it was so fast I barely had time to label one floppy before it asked for the next one.
We don't have such a tool in Linux. The technology is out there somewhere, but I don't know of a tool that can record (and do it fast) removable media compressed with recovery data designed to bypass the common types of media errors. Think of a DVD with a .tgz archive... a scratch, an error, and the entire archive is useless.
I'm not talking of state of the art maximum compression: only some compression.
That is an excellent observation. The other items mentioned are all either command-line (ugh!) or scripted. This seems like an area ripe for exploration. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org