-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Wednesday 2006-12-06 at 21:12 -0800, Randall R Schulz wrote:
But the tradeoff with per-file compression is that you typically get rather poor compression for archives that contain many small files.
Yes, the compression ratio is a bit worse, but that's something I will happily sacrifice for safety where backups are concerned.
But what is this "safety" we're talking about? Usually if a file is corrupted, it's massively corrupted and if it's intact, then it's intact.
It's a specious safety you get with the CPIO approach. Either you back-ups are intact or they're not.
No, that's not the point. A single error in a tar.gz archive renders the whole archive useless, with all its contents - because it is the tar archive that is compressed. On the other hand, if the files are first compressed and then archived with cpio, a single media error will only inutilize the single file affected, not the whole. That's way safer, IMO. And not only IMO.
I have some backups of an entire HD done using nearly a hundred floppies - you can imagine when - and the whole backup is still fully retrievable, although some floppies have errors.
Yes. Thank god we're now far beyond the floppy era. There is nothing that can meaningfully be done with a diskette as far as archiving or back-ups are concerned.
You seem to not read the complete paragraph and then jump to the wrong conclusions too fast. I mentioned disquetes only because that application was able to make reliable backups with unreliable media, and thus I would like to have a modern app in linux able to do the same thing with modern media - not disquetes. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFFeBw9tTMYHG2NR9URAnXeAJwNFEYZOpMPo8SqCJYJAcykgPfTcQCgkJCW Fl+ngkoE2Wijsheuf3q/tuU= =4Fcd -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org