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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LEARN ABOUT CENTOS
rhoptimize
RHOPTIMIZE(1) General Commands Manual RHOPTIMIZE(1)
NAME
rhoptimize - optimize beam locations in holodeck file
SYNOPSIS
rhoptimize [ -u ] src_holo [ dest_holo ]
DESCRIPTION
Rhoptimize optimizes beam positions and eliminates fragment waste in the holodeck file src_holo, writing the result to dest_holo, or back
into src_holo if only one argument is given. This may improve rendering speed on large holodecks, which tend to have widely dispersed beam
positions that cause delays due to long file seeks. It may also reduce the size of the file, since large holodecks become fragmented as
they fill up with new ray samples. (Use the rhinfo(1) program to determine holodeck file fragmentation.) The -u option adds a check to
make sure that each ray sample is unique, i.e., the same sample is never given twice. This check is usually unnecessary, but may eliminate
redundant samples from some holodeck files.
EXAMPLE
To optimize the beam order in old.hdk and write the results to new.hdk:
rhoptimize old.hdk new.hdk
To optimize beam order in scene.hdk:
rhoptimize scene.hdk
NOTES
If rhoptimize is given only one file argument, it creates a temporary file in the same directory, and moves it onto the original file once
it has successfully completed its operation. If the operation fails for some reason, the temporary file is removed and the original
holodeck is left unchanged.
This program generally takes several minutes to run and offers no progress reports.
FILES
rho????.hdk temporary file to hold new holodeck
AUTHOR
Greg Ward Larson
ACKNOWLEDGMENT
This work was supported by Silicon Graphics, Inc.
SEE ALSO
getinfo(1), pfilt(1), psign(1), rhcopy(1), rhinfo(1), rholo(1), rpict(1)
RADIANCE
1/25/99 RHOPTIMIZE(1)