Re: [BackupPC-users] Compression level
Craig Barratt wrote: Rich writes: I don't think BackupPC will update the pool with the smaller file even though it knows the source was identical, and some tests I just did backing up /tmp seem to agree. Once compressed and copied into the pool, the file is not updated with future higher compressed copies. Does anyone know something otherwise? You're right. Each file in the pool is only compressed once, at the current compression level. Matching pool files is done by comparing uncompressed file contents, not compressed files. It's done this way because compression is typically a lot more expensive than uncompressing. Changing the compression level will only apply to new additions to the pool. To benchmark compression ratios you could remove all the files in the pool between runs, but of course you should only do that on a test setup, not a production installation. Craig The other point to keep in mind is that unless you actually need compression for disk space reasons leaving it off will often be faster on a CPU bound server. Since there is a script provided (BackupPC_compressPool) to compress it later you can safely leave compression off until you need the disk space. John - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] Backuppc and Amanda
Sorry for the delay, we are using amanda for backuppc archiving purpose. Main difficulty relies on the kind of FS used for pooling. My own experience goes against using : Soft 5T pool for 25T hardlinked data with a lot of small files and more than 20% of free FS space ++ defragmented All backups are done over LVM(No RAID) snapshots Hard 3Ware RAID5 / 750Go SATA / 4 Opteron / 16 Go RAM hardware Tar tends to be too slow. It produces 'killer' interruptions for backuppc rsync jobs. All CPUs are going IO/waiting) or iostat await is going over 500. I was then only able to considere full device binary dump, which are not handed by amanda or some dump/restore process. dump/restore over LVM ext3 were not tested. ext3 looks too slow for my backuppc pool and I wasn't secure about harlinks. I choose XFSdump after some optimization : DMAPI on SGI patched kernel and mount optimization. Then I was under stress for amanda xfsrestore : Time for backup got limits from its bandwith for housekeeping data r/w ! Once I choose to move them in tmpfs mounts (size 8Go !) and to not allow swapping, I got good perf : Average looks give me tar is done 1mb/s on xfs optimized, ext3 dump at 1~2mb/s xfsdump at 1~2mb/s without dmapi xfsdump at 20~25mb/s with dmapi My backups are done on LTO3. For amanda I choose to not use disk split buffer and I do it in RAM on 1Go chunks. Well, it's now working in 2-3 days but restoring is 4 days but I did not try to optmize that. Sylvain PS : fstab extract : tmpfs on /tmp/amanda type tmpfs (rw,size=8g) /dev/mapper/vg_array0-BACKUPPC--SNAP on /srv-snap type xfs (ro,nobarrier,largeio,swalloc,nouuid,sunit=128,swidth=1152,dmapi,mtpt=/srv-snap) Some read about my NAS install with backuppc and amanda : http://www.isc.cnrs.fr/informatique/public_notice/Melian On Mon, 2007-11-26 at 13:28 -0800, Paddy Sreenivasan wrote: I'm a developer in Amanda (http://amanda.zmanda.com) project. Is anyone using Amanda and Backuppc together? I'm interested in integrating Backuppc with Amanda. Amanda will be the media manager (support for tapes and other media) consolidator of data from a group of BackupPC clients. Amanda's application api (http://wiki.zmanda.com/index.php/Application_API) can be used for integration. Lots of details have to be worked out. If anyone is interested in developing such a solution, please send me an email (paddy at zmanda dot com). Any suggestions on what features would be useful in a integrated solution? Thanks, Paddy - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/ -- ** Sylvain MAURIN - Admin.Sys. Institut des Sciences Cognitives CNRS-Universite Claude Bernard Lyon 1 67, boulevard Pinel. 69675 BRON cedex Tel:+33 437911214 Cel:+33 612399929 Mail: [EMAIL PROTECTED] ** Cert. CNRS-Plus S/N: 0C-31 - http://igc.services.cnrs.fr/ SHA-1 fingerprint: 7A:C7:4D:DE:29:C9:B3:FA:B8:81:5C:6B:80:8C:32:95:72:7A:4C:2B MD5 fingerprint: EA:B5:90:DC:72:3D:BB:39:FC:36:F5:B3:6D:96:BE:1D ** smime.p7s Description: S/MIME cryptographic signature - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] how to configure storage?
my 2cents having 4 drives i would suggest RAID5. raid5 gives a good blend between performance and reliability. you get redundancy and an improvement in filesystem performance. you get 1.5TB + a redundant drive. rebuild speed on that size of array on commodity hardware will be slow but livable. probably take a few hours to rebuild. i have a 4 drive raid 5 on sata and seagate 400GB disks and a full rebuild with %50 usage on the drives is about 2 hours though this was a test and not as a result of a failure, im not sure that really matters though. i would also suggest you use pure software raid on linux. decouples you from any specific controller and your drives can be pulled and put in any other linux setup to get the data if the machine crashes. you have one other promissing option. ZFS. you would need to run opensolaris or solaris or nexenta(ubuntu+opensolaris) to get this but it has a ZRAID function similar to raid5 but with LVM built in so you have add drives as you please. i seem to be the big ZFS tester on the mailing list and i have had no problems. i also use the built in compression rather than backuppc compression. additionally, you can remote replicate a ZFS volume. i have just started exploring this option because of some comments on the list here that rsync gets wacky at larger file counts and i currently replicate my bakuppc system to a remote site with rsync. with raid5 you cannot add drives to the array once built. if you add another volume with LVM, it will not be redundant and that filesystem will then require that drive to function so losing just 1 drive loses everything! you would have to add a second raid5 and add that to your volume group. oh, one last thing. good luck :) On Dec 5, 2007 6:08 AM, Mirco Piccin [EMAIL PROTECTED] wrote: Hi all. I also have four 500 GB IDE hard disks. I'm wondering what you would advise for the best way to configure them. I'm tempted to put them all in one lvm volume so that I can have 2 TB of storage. This is also the easiest for me to accomplish. I'd like to post here my experience. I assembly a small server (low power consumption and low noise) to backup about 30 pcs and 4 servers (mix of file server, mail server, application server). The OS is installed in a 1gb DOM (debian etch) and the space for the storage is located in sata disks; Initially i use 2 500gb sata disks in RAID1 and LVM. Then (after about 2 months) i add another 2 500GB sata disks (in RAID1) and extend original LVM. So now i have 1TB of total storage space. I choose this way because i did not know how many disks will be added to the BackupPC server (i have 2 sata channels on the motherboard plus 4 sata channels on a PCI card), and because sata disk is not so expensive. Using RAID1 and LVM for me means easy expansion capabilities. Hope my experience helps someone... Bye (...and sorry for my poor english) - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/ - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] NetBIOS name lookup - trouble with DHCP
if you are still able to ping the laptop at the wireless address then the wireless just needs shut down. after that you should be able to find the machine on the new IP via nmblookup. i know of no way to have a prefered address that is wired, and a fallback address that is wireless. On Dec 4, 2007 6:41 AM, Alexander Lenz [EMAIL PROTECTED] wrote: Hello guys, at first thanks for the info on user access to backups one of you gave me last time. Now, is there any way to change the mapping of nmb-name (NetBIOS) -- IP addr. ? Especially with DHCP leases involved, and multiple interfaces of laptops, i.e. eth and wireless, this can easily get broken. In this case, I want to get the resolver to find ' myNotebook-xyz' under IP 192.168.1.105 instead of 154, which was the old wireless IP. How to achieve that ? Already restarted /usr/sbin/nmbd (-D), but to no avail. Still, a ping myNotebook-xyz resolves to .154 Where's the crucial turn-key here ? Thanks a lot in advance, == Newton == -- Metaversum GmbH Geschaeftsfuehrer: Jochen Hummel, Dietrich Charisius, Dr. Mirko Caspar Rungestr. 20, D-10179 Berlin, Germany Amtsgericht Berlin Charlottenburg HRB 99412 B CONFIDENTIALITY NOTICE: The information contained in this communication is confidential to the sender, and is intended only for the use of the addressee. Unauthorized use, disclosure or copying is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately at the contact numbers or addresses noted herein. - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/ - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] backing up localhost fails
Craig Barratt wrote:
Scott writes:
TarClientCmd is
/usr/bin/sudo /bin/tar -c -v -f - -C $shareName+ --totals
and /bin/tar --version gives:
tar (GNU tar) 1.15.92
The backup fails with:
2007-12-04 22:09:50 full backup started for directory /data
2007-12-04 22:27:23 Got fatal error during xfer (No files dumped for
share /data)
2007-12-04 22:27:28 Backup aborted (No files dumped for share /data)
What is in the XferLOG.bad file?
It starts with:
Running: /usr/bin/sudo /usr/local/bin/tarCreate -v -f - -C /data --totals .
full backup started for directory /data
Xfer PIDs are now 23492,23491
apache2/
assp/
assp/spam/
assp/spam/3242
assp/spam/2924
assp/spam/1809
assp/spam/899
assp/spam/607
assp/spam/1899
which is confusing as I've removed the tarCreate wrapper so I've no idea
where its picking that up from. In desperation I rebooted the server,
but it still comes up. The relevant section from the machine.pl file is:
$Conf{XferMethod} = 'tar';
$Conf{TarClientCmd} = '/usr/bin/sudo /bin/tar -c -v -f - -C $shareName+
--totals';
$Conf{TarIncrArgs} = '--newer=$incrDate $fileList';
Anyway, the XferLOG.bad continues with file names in assp/spam until
around line 100 where it changes to:
assp/spam/3552
assp/spam/1666
create d 755 0/0 0 .
create d 755 0/0 0 apache2
create d 755 99/0 0 assp
create d 755 99/0 0 assp/spam
pool 600 99/99 10066 assp/spam/3242
pool 600 99/99 10007 assp/spam/2924
pool 600 99/99 10014 assp/spam/1809
pool 600 99/991566 assp/spam/899
I get around 60 of these lines beginning with pool and then from there
it alternates between just the file names and the pool lines. I guess
this is it finding the file in the pool.
The first directory /data then finishes and it starts on the second,
where it seems to go wrong:
pool 554 0/03999 www/backuppc/cgi-bin/BackupPC_Admin
tarExtract: Done: 0 errors, 116182 filesExist, 14267486394 sizeExist,
11865427525 sizeExistComp, 124095 filesTotal, 14494799736 sizeTotal
Running: /usr/bin/sudo /usr/local/bin/tarCreate -v -f - -C /usr --totals .
full backup started for directory /usr
Xfer PIDs are now 8150,8149
tarExtract: ./
tarExtract: ./bin/
tarExtract: ./bin/X11
tarExtract: ./bin/indent
tarExtract: ./: checksum error at
create 0 0/0 0
tarExtract: ./bin/
tarExtract: ./bin/X11
tarExtract: ./bin/indent
tarExtract: .
tarExtract: : checksum error at
tarExtract: Can't open /backup/pc/rivera/new/f%2fusr/ for empty output
create 0 0/0 0 .
tarExtract: : checksum error at
tarExtract: Can't open /backup/pc/rivera/new/f%2fusr/ for empty output
create 0 0/0 0 .
tarExtract: : checksum error at
tarExtract: Can't open /backup/pc/rivera/new/f%2fusr/ for empty output
create 0 0/0 0 .
I think I have plenty of space, my backups go to /backup:
df -k:
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/hda2479731472 43278360 412084116 10% /
/dev/hdc2307402872 27090588 264697104 10% /backup
Thanks for looking.
-
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Re: [BackupPC-users] BackupPC-users Digest, Vol 20, Issue 11
Message: 1
Date: Tue, 4 Dec 2007 16:40:53 -0600
From: Carl Wilhelm Soderstrom [EMAIL PROTECTED]
Subject: Re: [BackupPC-users] Backing up Windows Client with spaces in
the network path
To: backuppc-users@lists.sourceforge.net
Message-ID: [EMAIL PROTECTED]
Content-Type: text/plain; charset=us-ascii
On 12/04 03:44 , Ben Blankenberg wrote:
Have Tried these configs
$Conf{BackupFilesOnly} = ['*/test?test/*'];
And get this error message returned Last error is No files
dumped for share C$
Hmm, I don't use the $Conf{BackupFilesOnly} directive myself, so I can
only
guess. Have you tried:
$Conf{BackupFilesOnly} = ['/*/test?test/*'];
or better yet, specifying the full path? (tho I realize it won't be a
catch-all then, it'll be a useful experiment).
$Conf{BackupFilesOnly} = ['/foo/bar/test?test/*'];
--
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com
Have tried the recommended syntax and it still produces the same
results. I am basically wanting to backup the My Documents folder of
XP Clients, would this be easier using rsyncd?
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Re: [BackupPC-users] BackupPC-users Digest, Vol 20, Issue 11
On 12/05 08:42 , Ben Blankenberg wrote: Have tried the recommended syntax and it still produces the same results. I am basically wanting to backup the My Documents folder of XP Clients, would this be easier using rsyncd? It's much better to use rsyncd if at all possible. Just download the package from the backuppc website; it's pretty easy to use. -- Carl Soderstrom Systems Administrator Real-Time Enterprises www.real-time.com - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] Compression level
John Pettitt wrote: What happens is the newly transfered file is compared against candidates in the pool with the same hash value and if one exists it's just linked, The new file is not compressed. It seems to me that if you want to change the compression in the pool the way to go is to modify the BackupPC_compressPool script which compresses an uncompressed pool to instead re-compress a compressed pool. There is some juggling that goes on to maintain the correct inode in the pool so all the links remain valid and this script already does that. You're sure? That isn't my observation. At least with rsync, the files in the 'new' subdirectory of the backup are already compressed, and I vaguely recall reading the code and noticing it compresses them during the transfer (but on the server side as it receives the data). After the whole rsync session is finished, then the NewFiles hash list is compared with the pool. Identical files (determined by hash code of uncompressed data) are then linked to the pool. If that is all true, then it seems like there is an opportunity to compare the size of the existing file in the pool with the new file, and keep the smaller one. Rich - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] Using NFS share as BackupPC pool
I too am using Backuppc to backup over NFS V3 never had an issue i backup 5 linux box every day, its been running smooth as ice for the last 6 months or so... I have a question, is there any advantage to use nfs v3 over nfs v4? Everybody have a great day! Rob Morin Dido Internet Inc. Montreal,Canada http://www.dido.ca 514-990- Travis Fraser wrote: On Tue, 04 Dec 2007 22:45:40 +0100 Dan S. Hemsø Rasmussen [EMAIL PROTECTED] wrote: Hi... Yes... the Synology box is running with Linux.. the box have a mirror raid, and have just made a firmware with NFS support... So it should support hardlinks Do you have any experience good/bad, with BackupPC and NFS any performence issues...? I backup 6 machines for a total of around 40GB. The NFS performance has never appeared to have any issues. One time the NAS box did hang, causing some obvious problems. A restart of the NAS box fixed things though. Other than that one hang, the BackupPC server has been running fine for over two years straight. Hi... Anyone tried to use a NFS mount as pool for the backups...? I would like to use a Synology NAS box as storage for my BackupPC server. But will it work. I use a NAS box mounted via NFS. It works fine. The underlying filesystem on the NAS must support hardlinks I would think. Does the Synology box use Linux for the OS? - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/ - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/ - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] Compression level
Rich Rauenzahn wrote: I know backuppc will sometimes need to re-transfer a file (for instance, if it is a 2nd copy in another location.) I assume it then re-compresses it on the re-transfer, as my understanding is the compression happens as the file is written to disk.(?) Would it make sense to add to the enhancement request list the ability to replace the existing file in the pool with the new file contents if the newly compressed/transferred file is smaller? I assume this could be done during the pool check at the end of the backup... then if some backups use a higher level of compression, the smallest version of the file is always preferred (ok, usually preferred, because the transfer is avoided with rsync if the file is in the same place as before.) Rich What happens is the newly transfered file is compared against candidates in the pool with the same hash value and if one exists it's just linked, The new file is not compressed. It seems to me that if you want to change the compression in the pool the way to go is to modify the BackupPC_compressPool script which compresses an uncompressed pool to instead re-compress a compressed pool. There is some juggling that goes on to maintain the correct inode in the pool so all the links remain valid and this script already does that. John - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] Skirt a firewall
Howto is complete, at: http://backuppc.wiki.sourceforge.net/How+to+backup+through+an+SSH+tunnel I used PuTTY to create the tunnel in my instructions, but cygwin's SSH would work just as well.. The most difficult part was figuring out how to ping the client appropriately, since a normal ping won't work to a non-pinging client. Jack [EMAIL PROTECTED] wrote: it is probably against your companies security policy, but to get around this you can use cygwins ssh to connect to your PC at home for a tunnel, rather than having your backuppc at home try to connect to your work PC. You need the tunnel to be a stable consistant connection, that backuppc can talk through. This way it looks like your work pc and backuppc machine are on the same lan. a href=http://www.openoffice.org/scdocs/ddSSHGuide.html;http://www.openoffice.org/scdocs/ddSSHGuide.html/a or a google search on 'ssh tunnel cygwin' comes up with lots of hits. Enjoy and let us know how tings work out for you. (PS think about taking notes and writing a howto for the rest of us :) From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gene Horodecki Sent:Saturday, December 01, 2007 12:06 PM To: backuppc-users@lists.sourceforge.net Subject:[BackupPC-users] Skirt a firewall My place of business provides me with all kinds of firewalls and encryption on my harddrive but, wonderfully, no backup protection at all. And so... I am trying to backup my documents folder on my work laptop to my BackupPC installation. But I have a problem. The desktop firewall policy that comes as part of the image doesn't allow any incoming connections whatsoever. Is there a way for me to backup this laptop with backuppc... I have cygwin sshd installed.. So I'm hoping with some creative tunneling or something like that, it can work. Thanks! - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
[BackupPC-users] (no subject)
Rich Rauenzahn wrote: Steve Willoughby wrote: On Thu, Nov 29, 2007 at 03:22:10PM -0800, Carl Keil wrote: Hi Folks, I'm trying to retrieve some deleted files from a BackUpPC backup. The backup was deleted, but not much has been written to the drive since the backup. This is an ext3 file system, so I'm forced to use the grep an unmounted drive method of retrieval. Does anyone know a way to have grep return everything between two retrived strings? Like everything between tuxpaint and end. I'm trying to retrieve PNG files. Can you describe to me the tools and syntaxes I'd need to employ to accomplish such a feat? I'm familiar with the command line, I've gotten grep to return some interesting results and I know about piping commands, but I can't quite figure out the steps to extract these pngs from the raw hard drive. instead of grep, how about the command: perl -ne 'print if /tuxpaint/../end/' That would be a filter to print the lines from the one matching the regexp /tuxpaint/ to the one matching /end/. It'll work as a filter like grep does; either specify filenames at the end of the command line or pipe something into it. Are you searching backuppc's ext3 filesystem? Those PNG backup files are likely compressed with backuppc and gzip, so you're really wanting to look for backuppc's header information. Also, realize that sufficiently large files will not necessarily be contiguous on the unmounted drive. Here's a thread where someone had some limited success with midnight commander in 2002 http://www.ale.org/archive/ale/ale-2002-08/msg01317.html Rich I'm sorry for the delay, I'm just now getting a chance to try the perl -ne suggestion. What do you mean by backuppc's header info? How would I search for that? Thanks for your suggestions, ck - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] Bug in Backup File Selection in BackupPC 3.1?
Nils Breunese (Lemonbit) wrote:
Jon Forrest wrote:
Also, I read the documentation and learned that if the smb
transport is being used, there are rules about what happens
if both BackupFilesOnly and BackupFilesExclude and specified.
Why do these rules only apply when smb is used, and not
when rsync is used?
This is explained in the documentation:
http://backuppc.sourceforge.net/faq/BackupPC.html#item__conf_backupfilesexclude_.
The options are directly passed to the transfer program you're using and
smb, tar and rsync happen to use different include/exclude mechanisms.
Thanks for replying.
No doubt, but I was thinking that BackupPC would pass the appropriate
arguments to the transport mechanism since each one is implemented in
its own Perl module.
In any case, the only mention of rsync in that section you mention
has to do with specifying --one-file-system. I don't think that's
relevant in my case because I'm not complaining about /proc
being backed up.
I'm sure it works, there must be some error in your settings. Could you
maybe post your BackupFilesExclude and BackupFilesOnly settings?
Sure. In /etc/BackupPC/config.pl
$Conf{BackupFilesOnly} = {};
$Conf{BackupFilesExclude} = {};
In /etc/BackupPC/pc/client.pl
$Conf{BackupFilesOnly} = {
'/etc/namedb' = [
''
],
'/etc/named.conf' = [
''
]
};
The only other thing I can think of is that my share name
is / but even so, I would expect BackupFilesOnly to do
its trick. (I'm not sure what share really means when
backing up Unix systems).
Cordially,
--
Jon Forrest
Unix Computing Support
College of Chemistry
173 Tan Hall
University of California Berkeley
Berkeley, CA
94720-1460
510-643-1032
[EMAIL PROTECTED]
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Re: [BackupPC-users] Sending email via Louts Notes Server
[EMAIL PROTECTED] wrote: Hello, I'm using BackupPC 3.0.0 since several months on a test setup and now I would like to use the sending email. I don't want to use sendmail because I work with a Lotus Notes server and I would like to use it for sending emails. How must I set BackupPC to use it ? Just tell the sendmail on the backuppc machine to deliver local mail to the notes server. The details vary with linux distributions but you need to add define(`MAIL_HUB',[ip.of.internal.server]) to sendmail.mc, rebuild sendmail.cf and restart sendmail. In a fedora or RedHat style distibution, this would be in /etc/mail and the rebuild happens automatically with a 'service sendmail restart' command. (Note that the []'s around the IP address need to be there). -- Les Mikesell [EMAIL PROTECTED] - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] (no subject)
Carl Keil wrote: I'm sorry for the delay, I'm just now getting a chance to try the perl -ne suggestion. What do you mean by backuppc's header info? How would I search for that? Thanks for your suggestions, backuppc stores the compressed backed up files in compressed blocks with an md4 rsync checksum. For instance, you can't just gunzip filename from the pool to examine the contents of the file. You have to use backuppc's zcat utility. I don't know that the format is documented outside of the perl module that does it. Kinda looks like it does zlib blocks and it tweaks the first byte... Take a look at BackuppC::FileZIO for more details... http://backuppc.cvs.sourceforge.net/backuppc/BackupPC/lib/BackupPC/FileZIO.pm?revision=1.26view=markup Rich - SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 ___ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List:https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki:http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
Re: [BackupPC-users] Bug in Backup File Selection in BackupPC 3.1?
Jon writes:
I'm sure it works, there must be some error in your settings. Could you
maybe post your BackupFilesExclude and BackupFilesOnly settings?
Sure. In /etc/BackupPC/config.pl
$Conf{BackupFilesOnly} = {};
$Conf{BackupFilesExclude} = {};
In /etc/BackupPC/pc/client.pl
$Conf{BackupFilesOnly} = {
'/etc/namedb' = [
''
],
'/etc/named.conf' = [
''
]
};
The only other thing I can think of is that my share name
is / but even so, I would expect BackupFilesOnly to do
its trick.
Your BackupFilesOnly is backwards. It should map the share name
to the list of files/directories to backup for that share:
$Conf{BackupFilesOnly} = {
'/' = ['/etc/namedb', '/etc/named.conf'],
};
These are relative to the share name, which you said was /.
Insteady, you could use /etc for the share name and then set:
$Conf{BackupFilesOnly} = {
'/etc' = ['/namedb', '/named.conf'],
};
(I'm not sure what share really means when backing up Unix systems).
It depends on the Xfer method. BackupPC started with only smb for PCs,
which use the share terminology. For tar and rsync, share means the
absolute directory path. For rsyncd it means the rsyncd module name.
Craig
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