Re: [BackupPC-users] improving the deduplication ratio

2008-04-14 Thread Ludovic Drolez
On Wed, Apr 09, 2008 at 06:11:58PM -0700, Michael Barrow wrote: How long are you willing to have your backups and restores take? If you do more processing on the backed up files, you'll take a greater Not true : - working with fixed size chunks may improve speed, because algorithms could

Re: [BackupPC-users] improving the deduplication ratio

2008-04-14 Thread Ludovic Drolez
On Wed, Apr 09, 2008 at 10:12:09AM -0500, Les Mikesell wrote: I'd probably look at what rdiff-backup does with incremental differences and instead of chunking everything, just track changes where the differences are small. Yes but rdiff-backup has no pooling/deduplication. With that

[BackupPC-users] scheduled backups won't start

2008-04-14 Thread Micha Silver
I've been scratching my head over this for more than a week. I have two backup servers running, both on CentOS (64 bit). One has been humming along nicely for several months now, backing up several servers. The newer one, configured to backup some workstations, won't start scheduled backups. I

[BackupPC-users] Backup of single shares

2008-04-14 Thread Hermann-Josef Beckers
I'm trying to backup 6 different shares from a single windows host. According to the docs and the mailinglist archives I made different config.pl files under pc/ of the form host_share1.pl host_share2.pl and so on. They are also defined in the hosts file. CleintNameAlias is set and works

Re: [BackupPC-users] Error :- No ping Response

2008-04-14 Thread Wayne Gemmell
On Tuesday 01 April 2008 17:29:42 Les Mikesell wrote: kanti wrote: Hie thanx for ur valuable reply , now every thing is fine . But when i am trying to take a backup of client again that same error has occurred. (Unable to read 4 bytes). The error is like as follows :- full backup started

Re: [BackupPC-users] Solution for Re: no cpool info shown on web interface

2008-04-14 Thread Craig Barratt
Tino writes: I found a problem. IO::Dirent returns 0 as the type for the directories, so BackupPC::Lib-find() doesn't descent into them. Why it does so if run manually - I don't know. It does return a type 4 on ext3, on xfs it's always 0. Good detective work. There is a check in

Re: [BackupPC-users] Error :- No ping Response

2008-04-14 Thread Paul Horn
Hosts with a dash in the name are not resolved by nmb-lookup. I ended up putting reserved addresses in my local DHCP server so that such workstations always receive a known ip when on my network, then made a corresponding entry in /etc/hosts on the backuppc server. - Paul On Mon, 2008-04-14 at

Re: [BackupPC-users] Error :- No ping Response

2008-04-14 Thread Nils Breunese (Lemonbit)
Wayne Gemmell wrote: On Monday 14 April 2008 15:46:37 Paul Horn wrote: Hosts with a dash in the name are not resolved by nmb-lookup. I ended up putting reserved addresses in my local DHCP server so that such workstations always receive a known ip when on my network, then made a

[BackupPC-users] A problem to extract the file zipped , with hard links, that backup by archive function

2008-04-14 Thread Ferri Alessandro
Hello, I have a problem when I try to extract by tar command the file zipped by archive function: all the files are stored in backup tar file with RsyncShareName path before the true path, an example is: RsyncShareName is disk_c , so the file /data/fileA.txt in the client become

Re: [BackupPC-users] Error :- No ping Response

2008-04-14 Thread Wayne Gemmell
On Monday 14 April 2008 16:20:08 Nils Breunese (Lemonbit) wrote: Have you read 'How BackupPC Finds Hosts'? http://backuppc.sourceforge.net/faq/BackupPC.html#how_backuppc_finds_hosts Yes, the following is part of my output when running $ /usr/share/backuppc/bin/BackupPC_dump -v dalek ---

Re: [BackupPC-users] Wildly different speeds for hosts

2008-04-14 Thread Raman Gupta
Raman Gupta wrote: I have three hosts configured to backup to my PC. Here are the speeds from the host summary: host 1: 24.77 GB, 14,000 files, 18.78 MB/s (slower WAN link) host 2: 1.27 GB, 4,000 files, 1.89 MB/s (faster WAN link) host 3: 4.82 GB, 190,000 files, 0.66 MB/s (fast

[BackupPC-users] Backup to USB disk.

2008-04-14 Thread Mauro Condarelli
Hi, I asked this before, but no one answered, so I will try again :) I am using a large (500G) external USB disk as backup media. It performs reasonably, so no sweat. Problem is: Is there a way to do a pre-check to see if the drive is actually mounted and, if not, just skip the scheduled backup?

[BackupPC-users] Archive encrypted zip

2008-04-14 Thread Alexandre Joly
Has anyone ever managed to add a functionality to archive in zip format additionally with encryption? Maybe a slight modification of the BackupPC_archiveHost would be necessary or is it too complex? -- Alexandre Joly Network Administrator Infodev Electronic Designers Intl (418) 681-3539 ext.

Re: [BackupPC-users] Backup to USB disk.

2008-04-14 Thread Martin Leben
Mauro Condarelli wrote: Hi, I asked this before, but no one answered, so I will try again :) I am using a large (500G) external USB disk as backup media. It performs reasonably, so no sweat. Problem is: Is there a way to do a pre-check to see if the drive is actually mounted and, if

Re: [BackupPC-users] Archive encrypted zip

2008-04-14 Thread Tino Schwarze
On Mon, Apr 14, 2008 at 12:55:22PM -0400, Alexandre Joly wrote: Has anyone ever managed to add a functionality to archive in zip format additionally with encryption? Maybe a slight modification of the BackupPC_archiveHost would be necessary or is it too complex? Zip encryption is useless.

Re: [BackupPC-users] improving the deduplication ratio

2008-04-14 Thread Tino Schwarze
On Mon, Apr 14, 2008 at 10:09:57AM +0200, Ludovic Drolez wrote: How long are you willing to have your backups and restores take? If you do more processing on the backed up files, you'll take a greater Not true : - working with fixed size chunks may improve speed, because algorithms

Re: [BackupPC-users] scheduled backups won't start

2008-04-14 Thread Carl Wilhelm Soderstrom
On 04/14 02:26 , Micha Silver wrote: The newer one, configured to backup some workstations, won't start scheduled backups. Are you out of disk space? -- Carl Soderstrom Systems Administrator Real-Time Enterprises www.real-time.com

[BackupPC-users] 2 Problems: Wrong time and unsaved partial backups

2008-04-14 Thread Marco
Hi! I have some problems with my backuppc. First one is, that a few days ago the web interface reports the wrong time in the first status line. The time reporting started at is 2 hours in the future. But my system time is correct. The other lines in the status window are also correct. The problem

[BackupPC-users] file extraction, windows

2008-04-14 Thread Simone Marzona
Hi all When I extract some data from backuppc on a windows host the extraction stops at 2 GB. This happens either when I use the archive function either when I recover with/without compression. This happens only if working on Windows even if the FS is ntfs. Is there a solution for this problem?

Re: [BackupPC-users] file extraction, windows

2008-04-14 Thread Alexandre Joly
You'll find your answer in the documentation http://backuppc.sourceforge.net/faq/limitations.html#maximum_backup_file_sizes Simone Marzona wrote: Hi all When I extract some data from backuppc on a windows host the extraction stops at 2 GB. This happens either when I use the archive function

Re: [BackupPC-users] improving the deduplication ratio

2008-04-14 Thread Michael Barrow
On Apr 14, 2008, at 11:20 AM, Tino Schwarze wrote: Of course, you shouldn't underestimate the cost of managing a lot of small files (my pool has about 5 million files, some of them are pretty large), so the pool will have even more files which means more seeking and looking up file

Re: [BackupPC-users] Wildly different speeds for hosts

2008-04-14 Thread Tino Schwarze
On Mon, Apr 14, 2008 at 11:21:02AM -0400, Raman Gupta wrote: I have three hosts configured to backup to my PC. Here are the speeds from the host summary: host 1: 24.77 GB, 14,000 files, 18.78 MB/s (slower WAN link) host 2: 1.27 GB, 4,000 files, 1.89 MB/s (faster WAN link) host

Re: [BackupPC-users] Backup to USB disk.

2008-04-14 Thread Michael Barrow
Can someone help me, please? Yes. Just thinking out loud here, but couldn't you achieve the same result by using the automounter? The the drive is present, the automounter would mount it up and then BackupPC would be happy. If the drive isn't present, the mount should fail and BackupPC

[BackupPC-users] Conserve daily backups for 10 years

2008-04-14 Thread Mario Giammarco
Hello, since backuppc is very handy I would like to use it to keep an accurate history (like cdp or cvs) of each machine day by day. So I would like to keep 365 day x 10 years backups. I do not understand if it is possible, nor how to do it. If it is not possible I would like to do the most

Re: [BackupPC-users] Backup to USB disk.

2008-04-14 Thread Les Stott
Just thinking out loud here, but couldn't you achieve the same result by using the automounter? The the drive is present, the automounter would mount it up and then BackupPC would be happy. If the drive isn't present, the mount should fail and BackupPC would error out because its

Re: [BackupPC-users] improving the deduplication ratio

2008-04-14 Thread Les Mikesell
Ludovic Drolez wrote: On Wed, Apr 09, 2008 at 10:12:09AM -0500, Les Mikesell wrote: I'd probably look at what rdiff-backup does with incremental differences and instead of chunking everything, just track changes where the differences are small. Yes but rdiff-backup has no