RE: Duplicating a library.

I’ve been involved in copying libraries from one environment to another before.

From what I see, there are three methods.

CPYLIB etc..

SAVRST to save file

SAVRST to tape.

Of the saves, you should do performance testing to see which one is quickest.  In my experience, using 3590’s, tape is by far the quickest method.

I probably would not use CPYLIB as the access paths for each file will be rebuilt on the fly.  This will seriously hamper your system and may take many hours to complete (if not days)

Another method you might consider is to use a replication package such as DataMirror.

Hope this Helps

Adam

adam@slic-systems.com

www.slic-ssytems.com

-----Original Message-----
From: owner-midrange-l@midrange.com [mailto:owner-midrange-l@midrange.com]On Behalf Of Quazy
Sent: 27 June 2000 19:41
To: MIDRANGE-L@midrange.com
Subject: Duplicating a library.

Nightly we need to take a copy of our production library and duplicate it to a Test environment for our support people so they can play with almost current data.   

I have been accomplishing this by backing up the library with a save while active to a save file, then restoring the save file to the test environment, then backing the save file up to tape, and deleting it.  

I would like to eliminate going to a save file and just save to tape and duplicate the library. I don't want to restore from tape to the test environment. 

This is a 10 Gig library with 200 Physical and logical files.  

This library is used 27 X 7.

Can you do a crtdupobj on active files?   will it have to rebuild access paths?

I would appreciate anyone's thoughts on a good solution.

Thanks Chris.