On 6 Dec 2001 at 2:29pm, Ole Barnkob Kaas wrote > How do people verify their backups? Are there some nifty scripts or > tools available somewhere. Restoring 20GB+ of data just to find out that > tar or dump has trashed some of the data is a tediuos task. Especially > because you know you have to do it again when the problem is fixed to > ensure that the data really is ok.
Well, there's amverify, but all it does is generate a table of contents from the tape images -- if that succeeds, the tape is marked OK. Note that there is no comparison of the TOC to index files or file system contents, so this isn't exactly the best. > Checking the history of both tar and dump reveals so many issues that > one has to wonder if it is ever possible to guarantee a safe backup on a Dump has its issues, yes. But a lot of people depend upon tar. > linux box. Some cron task that could do a file to file compare or md5 > compare would really help me sleep at night. Patches welcome. ;) -- Joshua Baker-LePain Department of Biomedical Engineering Duke University
