On Wednesday 13 May 2015 10:43:35 Stefan Piperov wrote: > Hello, > I am new on this list, so I don't know if the issue was discussed > previously, but I couldn't find anything in the archives, so I'll ask > anyway: > > > I have just setup a backup server and a client using ScientificLinux6 > (RHEL6) machines (so - amanda is version 2.6.1p2) > > Everything went smooth. However, on my test backup run I observed that > the large binary files were corrupted after the restore. > > They were the exact same size (and permissions), but had occasional > bytes that differed from the originals. > > This only happened on large binary files (like executables, and large > gzipped archives that I happened to have in the test dir.) > > What might be the reason for that? > Initially I was using the "comp-user-tar" dumptype, but later > reproduced the problem with the "comp-user" dumptype too. > > The backup did not span more than one tape. > Also, I noted that if I restore the problematic files on the backup > server, they are not corrupt. So - something seems to be happening on > the way back to the client. > > > Should I suspect networking issues?
Something seems to point that way. 2.6.1p2 is a bit long in the tooth however, and its probably possible to build 3.3.7p1 on those machines. tar version my be relevant too. But the fact that its ok when recovered on the sever still points back at the networking. Wired I assume? wireless hasn't yet proved itself to me for this sort of usage. And I am a broadcast engineer, many years retired now. > My vtapes are on a software-raid (mdadm) array. Could that somehow > affect the process (would be weird, but I have to ask) > Behaviour was the same with and without holding disk. I keep my vtapes on a single 1Tb drive. I can't believe you would have array problems only when the network is involved. > Regards, > Stefan. [email protected] Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene>
