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Full Discussion: aix 4.2 "compress" : any issues with files bigger then 1Gig ?
Operating Systems AIX aix 4.2 "compress" : any issues with files bigger then 1Gig ? Post 302348555 by Browser_ice on Saturday 29th of August 2009 10:28:07 AM
Old 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

dh_compress

DH_COMPRESS(1)							     Debhelper							    DH_COMPRESS(1)

NAME

       dh_compress - compress files and fix symlinks in package build directories

SYNOPSIS

       dh_compress [debhelperoptions] [-Xitem] [-A] [file...]

DESCRIPTION

       dh_compress is a debhelper program that is responsible for compressing the files in package build directories, and makes sure that any
       symlinks that pointed to the files before they were compressed are updated to point to the new files.

       By default, dh_compress compresses files that Debian policy mandates should be compressed, namely all files in usr/share/info,
       usr/share/man, files in usr/share/doc that are larger than 4k in size, (except the copyright file, .html and other web files, image files,
       and files that appear to be already compressed based on their extensions), and all changelog files. Plus PCF fonts underneath
       usr/share/fonts/X11/

FILES

       debian/package.compress
	   These files are deprecated.

	   If this file exists, the default files are not compressed. Instead, the file is ran as a shell script, and all filenames that the shell
	   script outputs will be compressed. The shell script will be run from inside the package build directory. Note though that using -X is a
	   much better idea in general; you should only use a debian/package.compress file if you really need to.

OPTIONS

       -Xitem, --exclude=item
	   Exclude files that contain item anywhere in their filename from being compressed. For example, -X.tiff will exclude TIFF files from
	   compression.  You may use this option multiple times to build up a list of things to exclude.

       -A, --all
	   Compress all files specified by command line parameters in ALL packages acted on.

       file ...
	   Add these files to the list of files to compress.

CONFORMS TO

       Debian policy, version 3.0

SEE ALSO

       debhelper(7)

       This program is a part of debhelper.

AUTHOR

       Joey Hess <joeyh@debian.org>

9.20120909							    2012-05-19							    DH_COMPRESS(1)
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