Hi All,
To summarize my problem, instead of incremental level1 dumps on FreeBSD
w/ ZFS I'm always getting quasi level 0 dumps, which takes ages.
During backup I can see the following with amstatus:
files.linguamatics.com:/export/proj 1 1488m
dumping 29829m (2003.73%) (13:09:38)
files.linguamatics.com:/export/proj/i2e 1 2449m
dumping 319500m (13042.58%) (7:04:16)
files.linguamatics.com:/export/proj/ieir 1 21110m
dumping 120820m (572.33%) (9:18:42)
As you can see, the estimated value for /export/proj/i2e was 2.4G and it
already backed up 319G.
The dumptype for these DLEs is zfs-amgtar-compress-client, which looks like:
define script-tool amzfs_snapshot {
comment "backup of zfs snapshot"
plugin "amzfs-snapshot"
execute-on pre-dle-amcheck, post-dle-amcheck, pre-dle-estimate,
post-dle-estimate, pre-dle-backup, post-dle-backup
execute-where client
}
define application-tool app_amgtar {
plugin "amgtar"
property "ATIME-PRESERVE" "NO"
property "EXIT-HANDLING" "1=GOOD 2=BAD"
property append "IGNORE" ": socket ignored$"
property append "IGNORE" "file changed as we read it$"
property append "IGNORE" "Cannot stat: No such file or directory$"
}
define dumptype amgtar-nocompress {
global
program "APPLICATION"
application "app_amgtar"
compress none
estimate calcsize
}
define dumptype amgtar-compress-client {
amgtar-nocompress
compress client custom
client_custom_compress "/usr/local/bin/customcompress"
estimate calcsize
}
define dumptype zfs-amgtar-compress-client {
amgtar-compress-client
script "amzfs_snapshot"
}
I had to patch Zfs.pm to get the snapshots working, but this may not be
connected to the issue.
:e /usr/local/lib/perl5/site_perl/5.10.1/Amanda/Application/Zfs.pm
--- Zfs.pm.orig 2011-03-29 16:35:02.000000000 +0100
+++ Zfs.pm 2011-03-29 16:35:49.000000000 +0100
@@ -381,12 +381,12 @@
my $snapshotname = "";
if (!defined $level) {
- $snapshotname = "amanda-" . Amanda::Util::sanitise_filename($self->{disk}) .
"-current";
+ $snapshotname = "amanda-current";
} else {
if ($level< 0) {
- $snapshotname = "amanda-" . Amanda::Util::sanitise_filename($self->{disk}) .
"-check";
+ $snapshotname = "amanda-check";
} else {
- $snapshotname = "amanda-" . Amanda::Util::sanitise_filename($self->{disk}) .
"-" . $level;
+ $snapshotname = "amanda-" . $level;
}
}
Amanda server version 3.3.0 running on CentOS 6.0
Amanda client version 3.2.1 running on FreeBSD 8.2 from ports
# pkg_info | grep -i amanda
amanda-client-3.2.1,1 The Advanced Maryland Automatic Network Disk
Archiver (clie
amanda-perl-wrapper-1.01 Perl wrapper to use with Amanda (with
libthr.so.* linked)
amanda-server-3.2.1,1 The Advanced Maryland Automatic Network Disk
Archiver (serv
What can be the problem?
Thanks,
Attila
