Re: [opensuse] Timestamping [ Was : Converting file system]

On Thursday 26 April 2007 06:43, G.T.Smith wrote:
.................snip a lot....................
Neither of the solutions I posted earlier in this thread are dependent
on timestamps.

iirc: Especially for online backups rdiff-backup mentioned before
ignores timestamps altogether. It calculates the MD5 for every file
to see if any changes have been introduced. If they have it segments
the file and drills down to find the smallest unit of change and only
sends that data across the LAN/WAN.

Greg

Thanks. I have taken a look at your suggestions and that of Joachim, I
am impressed with the description of both. XFS is not an option as it
looks like I would have to do a lot of partition juggling to make a move.

Unfortunately, as there are problems with my tape unit I am for the
moment constrained by the need to backup to DVD/CD, and it is not
immediately clear to me how either dirvish or rdiff-backup would
effectively work in this situation, but I will be looking into this
further. (Actually, the more I have explored the DVD/CD element of the
problem, more I understand why no-one has produced a usable DVD/CD
backup solution). I have already decided that for the code I am working
on I will be using subversions backup procedures to dump the
repositries, and I will be dumping MySQL databases as well (probably
will eventually run queries that only dump new records or modified
records), which largely leaves the backup of Documents, Spreadsheets,
etc etc to something else (rdiff-backup seems to be the front runner
here).. e-Mail structures are going to be a particular headache.

If you need to back up to DVD/CD what about Mondo/Mindi I used to use it
exclusively for several years a while ago. Now I use Kdar but I back up to a
spare hard drive.

Just a thought.

Bob S.
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