On 2017-08-30 09:58, Michael Hirmke wrote:
Hi,
[...]
Paranoids compare the backup with the original as part of the backup procedure before calling it done ;-)
real [tm] paranoids are doing a backup, comparing it, duplicating it to another medium and comparing it again. I should know that, cause I *am* a real [tm] paranoid ;)
Also, paranoids? do nor rely on tar.gz ;-)
exactly - I'm doing a 1:1 rsync backup without any compression on the target side.
Same here. To clarify, the problem is not tar itself, but the compression. A single error, and the entire archive is lost, usually beyond repair. I would love to use compression, but so far, I don't like the compressors in Linux for backup. Only RAR has data error protection, but it is commercial and doesn't handle all Linux attributes/permissions. Other compressors are adding error correction features, but are not there yet. Then, fylesystems could be compressed. This is a thing that MsDos/Windows has had since decades, but not Linux. Only now btrfs does, but I don't trust that fs yet... -- Cheers / Saludos, Carlos E. R. (from 42.2 x86_64 "Malachite" at Telcontar)