On 30/08/17 03:58 AM, Michael Hirmke wrote:
exactly - I'm doing a 1:1 rsync backup without any compression on the target side.
Well, yes. Disk-to-disk-to<something> is a good basic strategy, given the right <something> Regular readers will recall that I use LVM which allows a snapshot of a like file system to be made, and that's probably more efficacious than the rsync is both are local. Rsync wins out if you are, for example copying to the Cloud as a backup. Personally I don't. It's about bandwidth. I suppose I could pay for more but with so many other ways of backing up available the pressure isn't there for me. I'm not saying it won't be the case for other people, organizations. Again, regular readers will recall that I organize much of my workspace to back up onto CD/DVD. Yes, it requires organization and planning but it works. But sometimes you do need to 'package', and the fact that we use RPM files to package/bundle up a set of files and some metadata is an example of that. The guts of a RPM file is gzip'd CPIO/SVR4 format file. More recent versions of RPM can also use bzip2, lzip, lzma, or xz compression. IIR there was a shift by the UNIX leaders such as Bell's USG away from TAR to CPIO back in the 1970s. Basically the decision tree comes down to this: A) Do you want to package the files into a single file or not? B) if "yes" to the above, do you want to compress the package? I suppose you could consider compressing each file as it goes into the package but that's neither so efficient nor as convenient. -- A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting frowned upon? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org