02-27-2009
Thank you for the info.
Unfortunetly, we have gzip (v1.2.4) on 1 of the DB servers. I am not aware of the license related ot its usage. So I cannot copy it over to the other DB servers.
The only compress tool we have across all servers is 'compress'.
However, if compress is a one single-threaded process, then the same method could be applied. So instead of taking 2hrs to compress all files of one DB backup, it would in theory take 20-30 min in total.
One other question, in using 'compress', which temporary storage does it use while compressing the file ? The current or some other assigned system folder ?
The folder where the backups are is pretty full and since I am not the system admin, I cannot increase its space.
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ZNEW(1) General Commands Manual ZNEW(1)
NAME
znew - recompress .Z files to .gz files
SYNOPSIS
znew [ -ftv9PK] [ name.Z ... ]
DESCRIPTION
Znew recompresses files from .Z (compress) format to .gz (gzip) format. If you want to recompress a file already in gzip format, rename
the file to force a .Z extension then apply znew.
OPTIONS
-f Force recompression from .Z to .gz format even if a .gz file already exists.
-t Tests the new files before deleting originals.
-v Verbose. Display the name and percentage reduction for each file compressed.
-9 Use the slowest compression method (optimal compression).
-P Use pipes for the conversion to reduce disk space usage.
-K Keep a .Z file when it is smaller than the .gz file
SEE ALSO
gzip(1), zmore(1), zdiff(1), zgrep(1), zforce(1), gzexe(1), compress(1)
BUGS
Znew does not maintain the time stamp with the -P option if cpmod(1) is not available and touch(1) does not support the -r option.
ZNEW(1)