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yadav2005 · Intermediate Joined: 10 Jan 2005 Posts: 348 Topics: 144

I have a file which is uncompressed format and I need to compress the file desiring to be VSAM , is there any utility or way to do this task. Can anybody help me with comressing files techniques and why we have the concepts of compressing and uncompressing.

Anuj Dhawan · Posted: Fri Oct 09, 2009 8:58 am Post subject:

I do not understand this

Anuj Dhawan · Posted: Fri Oct 09, 2009 9:02 am Post subject:

Advantages for compressing files include, as IBM says,

saving money and time by compressing files before sending them over a network.
Saving storage and archiving system resources.
Compress file systems before making backups to preserve tape space.
Compress log files created by shell scripts that run at night; it is easy to have the script compress the file before it exits.
Compress files that are not currently being accessed. For example, the files belonging to a user who is away for extended leave can be compressed and placed into a tar archive on disk or to a tape and later be restored

_________________
Regards,
Anuj

kolusu · Posted: Fri Oct 09, 2009 10:05 am Post subject:

yadav2005,

Search for "compression" in this book

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DGT2D480/CCONTENTS?