Not forgotten.

".... is the method of recording and possibly increased the maximum recording 
rate"

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Horne, Jim
Sent: Friday, November 15, 2019 9:46 AM
To: [email protected]
Subject: Re: [EXTERNAL] Re: Collecting SMF dataset using LogStream

Al forgot about message flooding.  If you are having issues losing SMF data 
because it sometimes arrives too fast and swamps the MANx datasets, logstreams 
can help with this.  I don't know how effective DASD only logstreams would be 
with this because we don't use them but they may help if you have that issue.  
If you are not losing data then I agree with Al, that DASD only logstreams do 
not really help a lot.  Logstreams, though, are a wonderful thing.  We 
converted to sysplex-wide logstreams back in 2011 and have never looked back.

Jim Horne

-----Original Message-----

What others have said, Read the books,....
You did not say what your environment is (single image, base sysplex, parallel 
sysplex).
IMO, unless/until you are running a parallel sysplex, logstreams are of minimal 
(if any) benefit.

A parallel sysplex requires a coupling facility to support logstreams.
If you do not have a coupling facility, DASD only logstreams are available.

DASD only logstreams cannot be shared. This negates the major benefit of 
defining the logstreams in the first place.

So unless you are running a parallel sysplex, the only thing you have changed 
from what you are doing today, is the method of recording and possibly 
increased the maximum recording rate ________________________________
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