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
svn-fast-backup
svn-fast-backup(1) General Commands Manual svn-fast-backup(1)
NAME
svn-fast-backup - very fast backup for Subversion fsfs repositories.
SYNOPSIS
svn-fast-backup [-q] [-k{N|all}] [-f] [-t] [-s] repos_path backup_dir
DESCRIPTION
svn-fast-backup uses rsync snapshots for very fast backup of a Subversion fsfs repository at repos_path to backup_dir/repos-rev, the latest
revision number in the repository. Multiple fsfs backups share data via hardlinks, so old backups are almost free, since a newer revision
of a repository is almost a complete superset of an older revision.
This is good for replacing incremental log-dump+restore-style backups because it is just as space-conserving and even faster; there is no
inter-backup state (old backups are essentially caches); each backup directory is self-contained. It has the same command-line interface
as svn-hot-backup(1) (if you use --force), but only works for fsfs repositories.
svn-fast-backup keeps 64 backups by default and deletes backups older than these; this can be adjusted with the -k option.
OPTIONS
-h, --help
Shows some brief help text.
-q, --quiet
Quieter-than-usual operation.
-k, --keep=N
Keep a specified number of backups; the default is to keep 64.
-k, --keep=all
Do not delete any old backups at all.
-f, --force
Make a new backup even if one with the current revision exists.
-t, --trace
Show actions.
-s, --simulate
Don't perform actions.
AUTHOR
Voluntary contributions made by many individuals. Copyright (C) 2006 CollabNet.
2006-11-09 svn-fast-backup(1)