d'Oh...forgot to hit send.... I use backuppc
for transport, it does tar, rsync, rsync server, smbclient, ftp.... It does checksums of some sort, haven't delved into details....but I was having a problem of bitrot (and ext4 corruption) on my old backuppc server, so it would notice files in its backup pool changing....though it just seems to recompute the checksum though....but guess it would create a new file when the file is backed up again. Not sure what the design decisions were.... I also recall there being something about it doing checksums as part of its rsync implementation. Probably something in how to do incremental rsync's without having to reconstitute the entire filesystem on the server side. I run it at home...where I now have a 7.2TB raidz2 array, my old backuppc server was a 5.3TB raid10 array. In the last year on the old backuppc server, I would have to expire backups early as I was constantly running out of space. New backuppc server is about (quickly checks my blog) 7 months old....last week I started getting alerts from nagios that I have less than 10% free. My old backuppc server was running on an Ubuntu server. I'm planning to build a second home backuppc server, (mainly to backup the rest of my main backuppc server -- since its also my home workstation), another FreeBSD server. Was going to just be a mirrored 2.75TB array, but now I'm wondering if I could hold out to make it either a 5.5TB or 8.25TB raidz.) My old backuppc server was running on ubuntu server. I was going to replace my two ubuntu servers -- retiring the old pentium 4 box, and turning the Core 2 Quad into an (x?)ubuntu desktop -- with two FreeBSD servers running on small atom boxes, though the atom box isn't quite up to the task for running cacti (while the Pentium 4 was?, probably the addition of percona monitoring scripts on the new system is pushing it over its capabilities)....so a 3rd FreeBSD server is in the works :) Which is starting to evolve into a second home backuppc server (instead of resurrect backuppc on the old ubuntu server)....using a mirrored 2.75TB array. Though now I'm wondering if I could hold out for a 5.5TB or 8.25TB raidz....the off-lease system needs work in the case/powersupply department...so I've been looking at new case with more drive bays.... I also run a smaller backuppc server at work....1TB out of the ~1.8TB disk is allocated to it. It does backups of my imac and my Windows VM. There used to be a windows desktop... but it did an autoupdate and wouldn't boot anymore...so I put ubuntu on it....almost to the day a year after the same thing happened to my windows machine at home, which now runs FreeBSD. My FreeBSD and Ubuntu systems at work are in our enterprise NetBackup system. Though doing restores from NetBackup is a pain....especially if you keep current with ports, etc. I've had to restore my FreeBSD machine at work twice....second time was worse than the first...because we do monthly fulls and daily incrementals...and it had missed the last two fulls. A lot of ports had been updated during that time.... On both of my backuppc's, I use rsync server for the transport with all clients (include Windows, my home system will backup my Windows VMs if they happen to be running when it checks for them)....with the exception of using ftp to backup one of my websites. I've done some major restores....once a restore of over 400GB (when an external drive failed), another time a restore 363G (restore a failed C drive.) Has also saved me a bunch of times with smaller restores. A co-worker has mentioned that at his other SA job, they use backuppc. At one time we talked about setting up a production FreeBSD/backuppc server (or two), to handle clients that we can't put into NetBackup and/or to have a second tier backup system. Though I think we're looking at purchasing Amanda Enterprise (and using OmniOS.) -- Who: Lawrence K. Chen, P.Eng. - W0LKC - Senior Unix Systems Administrator For: Enterprise Server Technologies (EST) -- & SafeZone Ally Snail: Computing and Telecommunications Services (CTS) Kansas State University, 109 East Stadium, Manhattan, KS 66506-3102 Phone: (785) 532-4916 - Fax: (785) 532-3515 - Email: [email protected] Web: http://www-personal.ksu.edu/~lkchen - Where: 11 Hale Library _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
