Re: [BackupPC-users] Filesystem corruption: consistency of the pool
also sprach Jeffrey J. Kosowsky backu...@kosowsky.org [2010.12.09.1538 +0100]: I did a test run of this tool and it took 12 days to run across the pool. I cannot take the backup machine offline for so long. Is it possible to run this while BackupPC runs in the background? It can run while backuppc is running though it will obviously miss some new files added by backuppc after you started running the program. My routine is non-destructive (it doesn't 'fix' anything) so it shouldn't conflict. Oh, so how do I fix the problems it finds (there are plenty it reports)? Or if you trust it to detect and fix it all in one step: BackupPC_fixLinks.pl -f [ optional output file to capture all the detections and status's] Unfortunately, BackupPC_fixlinks.pl needs jLib.pm, which doesn't seem to be in Debian's backuppc 3.1.0 :( Btw, do you plan to track your very useful scripts in some sort of VCS or integrate them with the BackupPC main source? Thanks, -- martin | http://madduck.net/ | http://two.sentenc.es/ auch der mutigste von uns hat nur selten den mut zu dem, was er eigentlich weiß. - friedrich nietzsche spamtraps: madduck.bo...@madduck.net digital_signature_gpg.asc Description: Digital signature (see http://martin-krafft.net/gpg/) -- ___ 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] Filesystem corruption: consistency of the pool
also sprach Jeffrey J. Kosowsky backu...@kosowsky.org [2010.11.17.0059 +0100]: I wrote two programs that might be helpful here: 1. BackupPC_digestVerify.pl If you use rsync with checksum caching then this program checks the (uncompressed) contents of each pool file against the stored md4 checksum. This should catch any bit errors in the pool. (Note though that I seem to recall that the checksum only gets stored the second time a file in the pool is backed up so some pool files may not have a checksum included - I may be wrong since it's been a while...) I did a test run of this tool and it took 12 days to run across the pool. I cannot take the backup machine offline for so long. Is it possible to run this while BackupPC runs in the background? 2. BackupPC_fixLinks.pl This program scans through both the pool and pc trees to look for wrong, duplicate, or missing links. It can fix most errors. And this? How else do you suggest I run it? Thanks, -- martin | http://madduck.net/ | http://two.sentenc.es/ remember, half the people are below average. spamtraps: madduck.bo...@madduck.net digital_signature_gpg.asc Description: Digital signature (see http://martin-krafft.net/gpg/) -- This SF Dev2Dev email is sponsored by: WikiLeaks The End of the Free Internet http://p.sf.net/sfu/therealnews-com___ 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] Filesystem corruption: consistency of the pool
martin f krafft wrote at about 09:53:25 +0100 on Thursday, December 9, 2010: also sprach Jeffrey J. Kosowsky backu...@kosowsky.org [2010.11.17.0059 +0100]: I wrote two programs that might be helpful here: 1. BackupPC_digestVerify.pl If you use rsync with checksum caching then this program checks the (uncompressed) contents of each pool file against the stored md4 checksum. This should catch any bit errors in the pool. (Note though that I seem to recall that the checksum only gets stored the second time a file in the pool is backed up so some pool files may not have a checksum included - I may be wrong since it's been a while...) I did a test run of this tool and it took 12 days to run across the pool. I cannot take the backup machine offline for so long. Is it possible to run this while BackupPC runs in the background? It can run while backuppc is running though it will obviously miss some new files added by backuppc after you started running the program. My routine is non-destructive (it doesn't 'fix' anything) so it shouldn't conflict. 2. BackupPC_fixLinks.pl This program scans through both the pool and pc trees to look for wrong, duplicate, or missing links. It can fix most errors. And this? I don't think i understand the question... (note I posted a slightly updated version on the group last night) How else do you suggest I run it? Look at the usage info ;) Or if you trust it to detect and fix it all in one step: BackupPC_fixLinks.pl -f [ optional output file to capture all the detections and status's] Or to do it sequentially: Detect: BackupPC_fixlinks.pl [output file] Fix: BackupPC_fixlinks.pl -l [output file] -- This SF Dev2Dev email is sponsored by: WikiLeaks The End of the Free Internet http://p.sf.net/sfu/therealnews-com ___ 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] Filesystem corruption: consistency of the pool
On Thu, Dec 09, 2010 at 09:53:25AM +0100, martin f krafft wrote: also sprach Jeffrey J. Kosowsky backu...@kosowsky.org [2010.11.17.0059 +0100]: I wrote two programs that might be helpful here: 1. BackupPC_digestVerify.pl If you use rsync with checksum caching then this program checks the (uncompressed) contents of each pool file against the stored md4 checksum. This should catch any bit errors in the pool. (Note though that I seem to recall that the checksum only gets stored the second time a file in the pool is backed up so some pool files may not have a checksum included - I may be wrong since it's been a while...) I did a test run of this tool and it took 12 days to run across the pool. I cannot take the backup machine offline for so long. Is it possible to run this while BackupPC runs in the background? 2. BackupPC_fixLinks.pl This program scans through both the pool and pc trees to look for wrong, duplicate, or missing links. It can fix most errors. And this? I don't know about the first one, but BackupPC_fixLinks.pl can *definitely* be run while BackupPC runs. For serious corruption, you may want to grab the patch I posted a few days ago; it makes the run *much* slower, but on the plus side it will fix more errors. OTOH, the errors it fixes only waste disk space, they don't actually break BackupPC's ability to function at all. -Robin -- http://singinst.org/ : Our last, best hope for a fantastic future. Lojban (http://www.lojban.org/): The language in which this parrot is dead is ti poi spitaki cu morsi, but this sentence is false is na nei. My personal page: http://www.digitalkingdom.org/rlp/ -- ___ 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] Filesystem corruption: consistency of the pool
Robin Lee Powell wrote at about 11:20:26 -0800 on Thursday, December 9, 2010: On Thu, Dec 09, 2010 at 09:53:25AM +0100, martin f krafft wrote: also sprach Jeffrey J. Kosowsky backu...@kosowsky.org [2010.11.17.0059 +0100]: I wrote two programs that might be helpful here: 1. BackupPC_digestVerify.pl If you use rsync with checksum caching then this program checks the (uncompressed) contents of each pool file against the stored md4 checksum. This should catch any bit errors in the pool. (Note though that I seem to recall that the checksum only gets stored the second time a file in the pool is backed up so some pool files may not have a checksum included - I may be wrong since it's been a while...) I did a test run of this tool and it took 12 days to run across the pool. I cannot take the backup machine offline for so long. Is it possible to run this while BackupPC runs in the background? 2. BackupPC_fixLinks.pl This program scans through both the pool and pc trees to look for wrong, duplicate, or missing links. It can fix most errors. And this? I don't know about the first one, but BackupPC_fixLinks.pl can *definitely* be run while BackupPC runs. For serious corruption, you may want to grab the patch I posted a few days ago; it makes the run *much* slower, but on the plus side it will fix more errors. I would suggest instead using the version I posted last night... It should be much faster though still slow and may avoid some issues... OTOH, the errors it fixes only waste disk space, they don't actually break BackupPC's ability to function at all. -- ___ 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] Filesystem corruption: consistency of the pool
On Thu, Dec 09, 2010 at 03:03:37PM -0500, Jeffrey J. Kosowsky wrote: Robin Lee Powell wrote at about 11:20:26 -0800 on Thursday, December 9, 2010: On Thu, Dec 09, 2010 at 09:53:25AM +0100, martin f krafft wrote: also sprach Jeffrey J. Kosowsky backu...@kosowsky.org [2010.11.17.0059 +0100]: I wrote two programs that might be helpful here: 1. BackupPC_digestVerify.pl If you use rsync with checksum caching then this program checks the (uncompressed) contents of each pool file against the stored md4 checksum. This should catch any bit errors in the pool. (Note though that I seem to recall that the checksum only gets stored the second time a file in the pool is backed up so some pool files may not have a checksum included - I may be wrong since it's been a while...) I did a test run of this tool and it took 12 days to run across the pool. I cannot take the backup machine offline for so long. Is it possible to run this while BackupPC runs in the background? 2. BackupPC_fixLinks.pl This program scans through both the pool and pc trees to look for wrong, duplicate, or missing links. It can fix most errors. And this? I don't know about the first one, but BackupPC_fixLinks.pl can *definitely* be run while BackupPC runs. For serious corruption, you may want to grab the patch I posted a few days ago; it makes the run *much* slower, but on the plus side it will fix more errors. I would suggest instead using the version I posted last night... It should be much faster though still slow and may avoid some issues... Well, I meant that version *plus* my patch. :D Will your new version catch the this has multiple hard links but not into the pool error I was seeing? (If so yay! and thank you!) -Robin -- http://singinst.org/ : Our last, best hope for a fantastic future. Lojban (http://www.lojban.org/): The language in which this parrot is dead is ti poi spitaki cu morsi, but this sentence is false is na nei. My personal page: http://www.digitalkingdom.org/rlp/ -- ___ 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] Filesystem corruption: consistency of the pool
Robin Lee Powell wrote at about 12:06:24 -0800 on Thursday, December 9, 2010: On Thu, Dec 09, 2010 at 03:03:37PM -0500, Jeffrey J. Kosowsky wrote: Robin Lee Powell wrote at about 11:20:26 -0800 on Thursday, December 9, 2010: On Thu, Dec 09, 2010 at 09:53:25AM +0100, martin f krafft wrote: also sprach Jeffrey J. Kosowsky backu...@kosowsky.org [2010.11.17.0059 +0100]: I wrote two programs that might be helpful here: 1. BackupPC_digestVerify.pl If you use rsync with checksum caching then this program checks the (uncompressed) contents of each pool file against the stored md4 checksum. This should catch any bit errors in the pool. (Note though that I seem to recall that the checksum only gets stored the second time a file in the pool is backed up so some pool files may not have a checksum included - I may be wrong since it's been a while...) I did a test run of this tool and it took 12 days to run across the pool. I cannot take the backup machine offline for so long. Is it possible to run this while BackupPC runs in the background? 2. BackupPC_fixLinks.pl This program scans through both the pool and pc trees to look for wrong, duplicate, or missing links. It can fix most errors. And this? I don't know about the first one, but BackupPC_fixLinks.pl can *definitely* be run while BackupPC runs. For serious corruption, you may want to grab the patch I posted a few days ago; it makes the run *much* slower, but on the plus side it will fix more errors. I would suggest instead using the version I posted last night... It should be much faster though still slow and may avoid some issues... Well, I meant that version *plus* my patch. :D My version does what your patch posted a couple of days does only faster probably better (i.e. your version may miss some cases where there are pool dups and unlinked pc files with multiple links). Will your new version catch the this has multiple hard links but not into the pool error I was seeing? (If so yay! and thank you!) I don't know what error you are referring to. My version simple extends to also test pc files with more than one link and fix them as appropriate though I haven't test it. -- ___ 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] Filesystem corruption: consistency of the pool
On Thu, Dec 09, 2010 at 03:15:41PM -0500, Jeffrey J. Kosowsky wrote: Robin Lee Powell wrote at about 12:06:24 -0800 on Thursday, December 9, 2010: On Thu, Dec 09, 2010 at 03:03:37PM -0500, Jeffrey J. Kosowsky wrote: Robin Lee Powell wrote at about 11:20:26 -0800 on Thursday, December 9, 2010: On Thu, Dec 09, 2010 at 09:53:25AM +0100, martin f krafft wrote: also sprach Jeffrey J. Kosowsky backu...@kosowsky.org [2010.11.17.0059 +0100]: I wrote two programs that might be helpful here: 1. BackupPC_digestVerify.pl If you use rsync with checksum caching then this program checks the (uncompressed) contents of each pool file against the stored md4 checksum. This should catch any bit errors in the pool. (Note though that I seem to recall that the checksum only gets stored the second time a file in the pool is backed up so some pool files may not have a checksum included - I may be wrong since it's been a while...) I did a test run of this tool and it took 12 days to run across the pool. I cannot take the backup machine offline for so long. Is it possible to run this while BackupPC runs in the background? 2. BackupPC_fixLinks.pl This program scans through both the pool and pc trees to look for wrong, duplicate, or missing links. It can fix most errors. And this? I don't know about the first one, but BackupPC_fixLinks.pl can *definitely* be run while BackupPC runs. For serious corruption, you may want to grab the patch I posted a few days ago; it makes the run *much* slower, but on the plus side it will fix more errors. I would suggest instead using the version I posted last night... It should be much faster though still slow and may avoid some issues... Well, I meant that version *plus* my patch. :D My version does what your patch posted a couple of days does only faster probably better (i.e. your version may miss some cases where there are pool dups and unlinked pc files with multiple links). I repeat my assertion that you are my hero. :) -Robin -- http://singinst.org/ : Our last, best hope for a fantastic future. Lojban (http://www.lojban.org/): The language in which this parrot is dead is ti poi spitaki cu morsi, but this sentence is false is na nei. My personal page: http://www.digitalkingdom.org/rlp/ -- ___ 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] Filesystem corruption: consistency of the pool
martin f krafft wrote at about 19:16:52 +0100 on Wednesday, November 3, 2010:
Hello,
My filesystem holding the backuppc pool was corrupted. While e2fsck
managed to fix it all and now doesn't complain anymore, I am a bit
scared that the backuppc pool isn't consistent anymore.
Is there a tool to check the consistency of the pool?
Is there a tool to repair an inconsistent pool?
I wrote two programs that might be helpful here:
1. BackupPC_digestVerify.pl
If you use rsync with checksum caching then this program checks the
(uncompressed) contents of each pool file against the stored md4
checksum. This should catch any bit errors in the pool. (Note
though that I seem to recall that the checksum only gets stored the
second time a file in the pool is backed up so some pool files may
not have a checksum included - I may be wrong since it's been a
while...)
2. BackupPC_fixLinks.pl
This program scans through both the pool and pc trees to look for
wrong, duplicate, or missing links. It can fix most errors.
The second program is on the wikki somewhere.
I will attach below a copy of the first program.
I find that the above two routines do a pretty good job of checking
for corruption in the pc and pool trees.
-
#!/usr/bin/perl
#
#
# BackupPC_digestVerify.pl
#
#
# DESCRIPTION
# Check contents of cpool and/or pc tree entries (or the entire tree)
# against the stored rsync md4 checksum digests (when available)
#
# AUTHOR
# Jeff Kosowsky
#
# COPYRIGHT
# Copyright (C) 2010 Jeff Kosowsky
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#
#
# Version 0.1, released Nov 2010
#
#
use strict;
use Getopt::Std;
use lib /usr/share/BackupPC/lib;
use BackupPC::Xfer::RsyncDigest;
use BackupPC::Lib;
use File::Find;
use constant RSYNC_CSUMSEED_CACHE = 32761;
use constant DEFAULT_BLOCKSIZE = 2048;
my $dotfreq=100;
my %opts;
if ( !getopts(cCpdv, \%opts) || @ARGV !=1
|| ($opts{c} + $opts{C} + $opts{p} 1)
|| ($opts{d} + $opts{v} 1)) {
print STDERR EOF;
usage: $0 [-c|-C|-p] [-d|-v] [File or Directory]
Verify Rsync digest in compressed files containing digests.
Ignores directories and files without digests
Only prints if digest does not match content unless verbose flag
(firstbyte = 0xd7)
Options:
-c Consider path relative to cpool directory
-C Entry is a single cpool file name (no path)
-p Consider path relative to pc directory
-d Print a '.' for every $dotfreq digest checks
-v Verbose - print result of each check;
EOF
exit(1);
}
die(BackupPC::Lib-new failed\n) if ( !(my $bpc = BackupPC::Lib-new) );
#die(BackupPC::Lib-new failed\n) if ( !(my $bpc = BackupPC::Lib-new(, ,
, 1)) ); #No user check
my $Topdir = $bpc-TopDir();
my $root;
$root = $Topdir . /pc/ if $opts{p};
$root = $bpc-{CPoolDir}/ if $opts{c};
$root =~ s|//*|/|g;
my $path = $ARGV[0];
if ($opts{C}) {
$path = $bpc-MD52Path($ARGV[0], 1, $bpc-{CPoolDir});
$path =~ m|(.*/)|;
$root = $1;
}
else {
$path = $root . $ARGV[0];
}
my $verbose=$opts{v};
my $progress= $opts{d};
die $0: Cannot read $path\n unless (-r $path);
my ($totfiles, $totdigfiles, $totbadfiles) = (0, 0 , 0);
find(\verify_digest, $path);
print \n if $progress;
print Looked at $totfiles files including $totdigfiles digest files of which
$totbadfiles have bad digests\n;
exit;
sub verify_digest {
return -200 unless (-f);
$totfiles++;
return -200 unless -s 0;
return -201 unless BackupPC::Xfer::RsyncDigest-fileDigestIsCached($_);
#Not cached type (i.e. first byte not 0xd7);
$totdigfiles++;
my $ret = BackupPC::Xfer::RsyncDigest-digestAdd($_, DEFAULT_BLOCKSIZE,
RSYNC_CSUMSEED_CACHE, 2); #2=verify
#Note setting blocksize=0, results in using the default blocksize of 2048 also,
but it generates an error message
#Also leave out final protocol_version input since by setting it undefined we
make it read it from the digest.
Re: [BackupPC-users] Filesystem corruption: consistency of the pool
also sprach Les Mikesell lesmikes...@gmail.com [2010.11.03.2156 +0100]: Yes, anything that is not linked by a current backup will be removed in the nightly runs. I might thus want to disable that cronjob for now. The more subtle problem is that the corruption may have overwritten the contents of existing files - but I'm pretty sure that a full run will detect any content differences and fix things up. There would be a chance that it would miss something if blocks in the middle of a file changed and you are using the --checksum-seed option with rsync, though. In that case it would use the cached checksums appended to the files instead of verifying all the way through. RsyncCsumCacheVerifyProb can help here too. I might just set it to 1.0 -- martin | http://madduck.net/ | http://two.sentenc.es/ kermit: why are there so many songs about rainbows? fozzy: that's part of what rainbows do. spamtraps: madduck.bo...@madduck.net digital_signature_gpg.asc Description: Digital signature (see http://martin-krafft.net/gpg/) -- The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book Blueprint to a Billion shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev___ 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] Filesystem corruption: consistency of the pool
On 11/03 07:16 , martin f krafft wrote: Is there a tool to check the consistency of the pool? Is there a tool to repair an inconsistent pool? Run full backups on all hosts, then BackupPC_nightly? -- Carl Soderstrom Systems Administrator Real-Time Enterprises www.real-time.com -- Achieve Improved Network Security with IP and DNS Reputation. Defend against bad network traffic, including botnets, malware, phishing sites, and compromised hosts - saving your company time, money, and embarrassment. Learn More! http://p.sf.net/sfu/hpdev2dev-nov ___ 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] Filesystem corruption: consistency of the pool
On 11/3/2010 1:16 PM, martin f krafft wrote: Hello, My filesystem holding the backuppc pool was corrupted. While e2fsck managed to fix it all and now doesn't complain anymore, I am a bit scared that the backuppc pool isn't consistent anymore. Is there a tool to check the consistency of the pool? The part that is important are the hardlinks from the files in the backup directories under pc to the correct contents, and there is probably no way to check or fix them. There would be some chance that the corruption overwrote some content or fsck removed some if you had inodes claiming the same space. Is there a tool to repair an inconsistent pool? I'd run new full backups as soon as practical. That will at least fix up anything missing in the latest run which is usually the most important. -- Les Mikesell lesmikes...@gmail.com -- Achieve Improved Network Security with IP and DNS Reputation. Defend against bad network traffic, including botnets, malware, phishing sites, and compromised hosts - saving your company time, money, and embarrassment. Learn More! http://p.sf.net/sfu/hpdev2dev-nov ___ 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] Filesystem corruption: consistency of the pool
also sprach Carl Wilhelm Soderstrom chr...@real-time.com [2010.11.03.2020 +0100]: Run full backups on all hosts, then BackupPC_nightly? also sprach Les Mikesell lesmikes...@gmail.com [2010.11.03.2022 +0100]: I'd run new full backups as soon as practical. That will at least fix up anything missing in the latest run which is usually the most important. Yeah, that's surely a good idea. I was wondering mostly about cleanup actually. I assume BackupPC_nightly removes everything from the pool with a link count == 1. Hence, the worst that could happen is that all previous backups would be rendered invalid, no? Thanks guys, -- martin | http://madduck.net/ | http://two.sentenc.es/ they that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. -- benjamin franklin spamtraps: madduck.bo...@madduck.net digital_signature_gpg.asc Description: Digital signature (see http://martin-krafft.net/gpg/) -- Achieve Improved Network Security with IP and DNS Reputation. Defend against bad network traffic, including botnets, malware, phishing sites, and compromised hosts - saving your company time, money, and embarrassment. Learn More! http://p.sf.net/sfu/hpdev2dev-nov___ 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] Filesystem corruption: consistency of the pool
On 11/3/2010 2:26 PM, martin f krafft wrote: I'd run new full backups as soon as practical. That will at least fix up anything missing in the latest run which is usually the most important. Yeah, that's surely a good idea. I was wondering mostly about cleanup actually. I assume BackupPC_nightly removes everything from the pool with a link count == 1. Hence, the worst that could happen is that all previous backups would be rendered invalid, no? Yes, anything that is not linked by a current backup will be removed in the nightly runs. The more subtle problem is that the corruption may have overwritten the contents of existing files - but I'm pretty sure that a full run will detect any content differences and fix things up. There would be a chance that it would miss something if blocks in the middle of a file changed and you are using the --checksum-seed option with rsync, though. In that case it would use the cached checksums appended to the files instead of verifying all the way through. -- Les Mikesell lesmikes...@gmail.com -- Achieve Improved Network Security with IP and DNS Reputation. Defend against bad network traffic, including botnets, malware, phishing sites, and compromised hosts - saving your company time, money, and embarrassment. Learn More! http://p.sf.net/sfu/hpdev2dev-nov ___ 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/
