[BackupPC-users] understanding "fill-ins", incrementals backuppc 2.x/3.x
This is going to be unsupported, I know, but for my own amusement (and possibly yours!) can someone help me understand the ramifications of subverting some of the tar options during the backups? Specifically, take this scenario: #1 full backup of / (tar -cvf - --totals -C / ./) so tar backs up everything, which is simple and works fine. but then, for incrementals, we make our own list of directories that have changes since the last full/inc backup (another program keeps track): #2 incremental of / (tar -cvf - --totals -C / -T #3 same as above, and so on So now, in the web interface, each view is a "hodge-podge"; you will see stuff "filled in" from the last full, since backuppc 2.x assumes (and rightly so) that it is a differential-style backup. I was hoping a restore process would be: restore #1, #2, #3 and it would work (a bit tedious). But I believe that, by #3, you may, in some cases, be restoring some data from the "full" and overwriting what changed from #2. Obviously, restoring a single file would work fine. I thought backuppc 3.x, with the multi-level incrementals would fix this problem (my problem, that is ;-), but as I think about it I don't think it will either, and it's melting my brain in the process. So my problem really isn't the backing up of data, that's fine. It just seems nearly impossible to restore and/or archive the data because I am storing it a somewhat unexpected way (a multi-level incremental without the empty directory structure that tar generates w/ --newer). Any thoughts and/or advice on this, other than the obvious "don't do that!"? :-) brien - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
Re: [BackupPC-users] Backup OS/2 share via SMB
Tareq, That error means you logged in, but for some reason (usually permissions problems), your logged in user cannot see those files. Have you tried to log into that share manually on your Linux box, using a similar command line? You can leave off a few flags and just log in to poke around. You may find that either 1) your share is indeed empty given your user's credentials, or 2) if your login has no password, the SMB server may refuse to export certain files or folders for viewing to an insecure user. WinXP sometimes does that. I have no idea what OS/2 does. Have you gotten any OS/2 systems working with SMB? Are certain shares working, but not others on the same machine? Hope that helps, JH Tareq Djamous wrote: > Hello, > I'm trying to backup my OS/2 Warp4 Clients with BackupPC v.3.0.0 . I > created a share that i can access/read/write from a Windows machine and > my linux server that runs BackupPC. > But everytime I want to run a full backup of that shre it says: > > Running: /usr/bin/smbclient pc-60\\D -U ADMIN -E -N -d 1 -c tarmode\ > full -tc - > full backup started for share D > Xfer PIDs are now 8369,8368 > tarmode is now full, system, hidden, noreset, verbose > tarExtract: Done: 0 errors, 0 filesExist, 0 sizeExist, 0 sizeExistComp, > 0 filesTotal, 0 sizeTotal > Got fatal error during xfer (No files dumped for share D) > Backup aborted (No files dumped for share D) > > although there are files to backup. > > Thanks in advance for your help > > - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
Re: [BackupPC-users] RE : Re: backuppc and "byte-by-byte incremental" backup
nestor picasse wrote: > > That's what I thought, but this is really the ideal > (essential?) feature (almost) every backup software is > lacking! > > As rsync sends only the modified bytes, there is a big > opportunity to store only these bytes and not the full > file! > > This would be a huge advantage: imagine you use > whatever database for a specific software. You > wouldn't have to always play with the database in > order to find out what has changed and generate the > corresponding file, you could just make a dump of the > whole database and rsync would do the job for you! > These database tricks are nightmares as every software > manufacturer use their own... Disk space is pretty cheap these days, but I suppose that depends on the size of your database dump after compression. I'd recommend translating the concept into the dollars it would save to see how much effort it is worth. > I know a commercial solution based on this feature: > one of the claim is that the incremental backup > becomes so low in terms of volume of data that it > easily enables for remote archiving with a classical > high speed internet connection! Rdiff-backup has this feature, but you lose compression and pooling of common files across machines. http://www.nongnu.org/rdiff-backup/ > So may I ask again: is it (could it) be planned for a > future backuppc release? The idea has been kicked around on the mail list before, but so far I haven't seen any plans mentioned. If it is enough of a problem to be worth the effort you might exclude the directory holding your database dumps from backuppc and run rdiff-backup there instead. -- Les Mikesell [EMAIL PROTECTED] - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
[BackupPC-users] RE : Re: backuppc and "byte-by-byte incremental" backup
Hi Les, That's what I thought, but this is really the ideal (essential?) feature (almost) every backup software is lacking! As rsync sends only the modified bytes, there is a big opportunity to store only these bytes and not the full file! This would be a huge advantage: imagine you use whatever database for a specific software. You wouldn't have to always play with the database in order to find out what has changed and generate the corresponding file, you could just make a dump of the whole database and rsync would do the job for you! These database tricks are nightmares as every software manufacturer use their own... I know a commercial solution based on this feature: one of the claim is that the incremental backup becomes so low in terms of volume of data that it easily enables for remote archiving with a classical high speed internet connection! So may I ask again: is it (could it) be planned for a future backuppc release? --- Les Mikesell <[EMAIL PROTECTED]> a écrit : > nestor picasse wrote: > > > > I'm quite new with Backuppc running on Debian, and > I > > am very impressed by the ease of use > (configuration, > > web interface, etc...) > > > > One question concerning incremental backup with > rsync: > > in case a file is found to have been modified and > > retrieved with backuppc, is the entire modified > file > > stored in /pc/* or only the modified bytes? > > > > If not, is it planned for future release? > > If you use rsync, only the modified parts will be > transferred over the > network, but backuppc will reconstruct the entire > new file, compress it, > and link it as a new file into the pool along with > any other identical > copies. That's probably not ideal for growing > log/mail files that are > unique per machine and change every run, but if you > copy the same > changed file as an update to many machines it's not > so bad. > > -- ___ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
Re: [BackupPC-users] backuppc and "byte-by-byte incremental" backup
nestor picasse wrote: > > I'm quite new with Backuppc running on Debian, and I > am very impressed by the ease of use (configuration, > web interface, etc...) > > One question concerning incremental backup with rsync: > in case a file is found to have been modified and > retrieved with backuppc, is the entire modified file > stored in /pc/* or only the modified bytes? > > If not, is it planned for future release? If you use rsync, only the modified parts will be transferred over the network, but backuppc will reconstruct the entire new file, compress it, and link it as a new file into the pool along with any other identical copies. That's probably not ideal for growing log/mail files that are unique per machine and change every run, but if you copy the same changed file as an update to many machines it's not so bad. -- Les Mikesell [EMAIL PROTECTED] - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
Re: [BackupPC-users] BackukpPC_Admin connects to server when run directly from terminal window, but not from FireFox
On Tue, 27 Feb 2007 07:00:54 -0800 (PST), Reef Morse <[EMAIL PROTECTED]> wrote: > I've installed BackupPC on Fedora Core 5 and have encountered > a problem that I can't solve. I have user backuppc, group > backuppc running Apache (httpd) and BackupPC (ps -Al shows both > processes owned by backuppc). When logged in as backuppc, > if I run BackupPC_Admin from a terminal window, I generate > the correct html showing that BackupPC_Admin connected to the > BackupPC server, but, if I run BackupPC_Admin from Firefox > (http://backuppc/cgi-bin/BackupPC/BackupPC_Admin), then BackupPC_Admin > cannot connect to the BackupPC server. I've been able to repeat this > several times. > > I think I've got some permissions set incorrectly, but I can't figure > out what. Has anyone seen this problem before, and solved it? Have you checked selinux issues? There's been recent discussion on the list about this for FC 6 that should give you some hints, though I think some of the selinux booleans are new in FC6. George signature.asc Description: PGP signature - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
[BackupPC-users] backuppc and "byte-by-byte incremental" backup
Dear users, I'm quite new with Backuppc running on Debian, and I am very impressed by the ease of use (configuration, web interface, etc...) One question concerning incremental backup with rsync: in case a file is found to have been modified and retrieved with backuppc, is the entire modified file stored in /pc/* or only the modified bytes? If not, is it planned for future release? Thanks in advance for your answer, Bruno ___ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
[BackupPC-users] BackukpPC_Admin connects to server when run directly from terminal window, but not from FireFox
I've installed BackupPC on Fedora Core 5 and have encountered a problem that I can't solve. I have user backuppc, group backuppc running Apache (httpd) and BackupPC (ps -Al shows both processes owned by backuppc). When logged in as backuppc, if I run BackupPC_Admin from a terminal window, I generate the correct html showing that BackupPC_Admin connected to the BackupPC server, but, if I run BackupPC_Admin from Firefox (http://backuppc/cgi-bin/BackupPC/BackupPC_Admin), then BackupPC_Admin cannot connect to the BackupPC server. I've been able to repeat this several times. I think I've got some permissions set incorrectly, but I can't figure out what. Has anyone seen this problem before, and solved it? Thanks, Reef Morse, PhD President, Scientific Software Services 42583 Five Mile Road Plymouth, MI 48170-2545 USA Phone and FAX 734 420 3528 - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
[BackupPC-users] Backup OS/2 share via SMB
Hello, I'm trying to backup my OS/2 Warp4 Clients with BackupPC v.3.0.0 . I created a share that i can access/read/write from a Windows machine and my linux server that runs BackupPC. But everytime I want to run a full backup of that shre it says: Running: /usr/bin/smbclient pc-60\\D -U ADMIN -E -N -d 1 -c tarmode\ full -tc - full backup started for share D Xfer PIDs are now 8369,8368 tarmode is now full, system, hidden, noreset, verbose tarExtract: Done: 0 errors, 0 filesExist, 0 sizeExist, 0 sizeExistComp, 0 filesTotal, 0 sizeTotal Got fatal error during xfer (No files dumped for share D) Backup aborted (No files dumped for share D) although there are files to backup. Thanks in advance for your help -- Mit freundlichen Grüßen Tareq Djamous GASSNER und Partner Herdweg 44 D-70174 Stuttgart E-Mail: [EMAIL PROTECTED] Tel: +49 (0)711 / 222964-274 Fax: +49 (0)711 / 222964-29 Sitz: Stuttgart Partnerschaftsregister: Stuttgart, PR 28 Dieses E-Mail kann Betriebs- oder Geschäftsgeheimnisse oder sonstige vertrauliche Informationen enthalten. Sollten Sie dieses E-Mail irrtümlich erhalten haben, ist Ihnen eine Kenntnisnahme des Inhalts, eine Vervielfältigung oder Weitergabe ausdrücklich untersagt. Bitte benachrichtigen Sie uns und vernichten Sie das empfangene E-Mail. Vielen Dank. This e-mail may contain trade secrets or privileged, undisclosed or otherwise confidential information. If you have received this e-mail in error, you are hereby notified that any review, copying or distribution of it is strictly prohibited. Please inform us immediately and destroy the original transmittal. Thank you for your cooperation. - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/backuppc-users http://backuppc.sourceforge.net/
