08-29-2009
aix 4.2 "compress" : any issues with files bigger then 1Gig ?
To speed up our backups, I found a way to compress all the backups files without running out of space. But before starting to use this in our procedures, I want to know if the command 'compress' has any issues in AIX 4.2 with files bigger then 1Gig. Our backup files have sizes ranging between 600Mg and 2Gb.
If there should be any issues with compressing such big files with the 'compress' command I want to know.
When using it on 2 backup folders, I did not see any error messages.
---------- Post updated 08-29-09 at 10:28 AM ---------- Previous update was 08-28-09 at 03:00 PM ----------
So by not having any replies I can consider that the 'compress' command in AIX 4.2 has no issues with any files of any sizes ?
I'm planning on planning the database backups tomorrow (Sunday) before puting them to tape (tar has no compression options).
In the mean time, I will do a test on a 2Gb file. Copy it and compare it with a decompress version of itself.
Last edited by Browser_ice; 08-28-2009 at 04:41 PM..
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LEARN ABOUT DEBIAN
storebackupupdatebackup
STOREBACKUPUPDATEBACKUP(1) User Contributed Perl Documentation STOREBACKUPUPDATEBACKUP(1)
NAME
storeBackupUpdateBackup.pl - updates / finalizes backups created by storeBackup.pl with option --lateLink, --lateCompress
SYNOPSIS
storeBackupUpdateBackup.pl -b backupDirectory [--autorepair]
[--print] [--verbose] [--debug] [--lockFile] [--noCompress]
[--progressReport number] [--checkOnly]
[--logFile
[--suppressTime] [-m maxFilelen]
[[-n noOfOldFiles] | [--saveLogs]]
[--compressWith compressprog]]
storeBackupUpdateBackup.pl --interactive --backupDir topLevlDir
[--autorepair] [--print]
WARNING
!!! USAGE IN PARALLEL WITH storeBackup.pl CAN DESTROY YOUR BACKUPS !!!
OPTIONS
--interactive, -i
interactive mode for reparing / deleting currupted
backups created with option '--lateLinks'
--backupDir, -b
top level directory of all backups (must exist)
--autorepair, -a
repair simple inconsistencies automatically without
requesting the action
--print
print configuration read from configuration file and stop
--verbose, -v
verbose messages
--debug, -d
generate detailed information about the files
with the linking information in it
--lockFile, -L
lock file, if exist, new instances will finish if
an old is already running
If set to the same file as in storeBackup it will
prevent $prog from running in parallel
to storeBackup, default is $lockFile
--noCompress
maximal number of parallel compress operations,
default = chosen automatically
--checkOnly -c
do not perform any action, only check consistency
--progressReport
print progress report:
after each 'number' files when compressing
after each 'number * 1000' files when linking
after each 'number * 10000' files when performing chmod
--logFile, -l
logFile, Default: stdout
--suppressTime
suppress output of time in logfile
--maxFilelen, -m
maximal length of log file, default = 1e6
--noOfOldFiles, -n
number of old log files, default = 5
--saveLogs
save log files with date and time instead of deleting the
old (with [-noOldFiles])
--compressWith
compress saved log files (e.g. with 'gzip -9').
default is 'bzip2'
COPYRIGHT
Copyright (c) 2008,2012 by Heinz-Josef Claes. Published under the GNU General Public License v3 or any later version
perl v5.14.2 2012-06-16 STOREBACKUPUPDATEBACKUP(1)