Maybe I should have clarified my intent.
The reason I am looking into mirroring is for PERFORMANCE, not necessarily
recovery. When I went to my first ADSM class, they talked about mirroring
for performance (although for the life of me, I could not understand how
having to perform 2-write operations versus 1, would speed anything up.
Yes, I realize the read part should be faster since numerous read
operations could be spread over the 2-mirrors ).
We too are completely raided. DASD/hardware issues are not the concern.
"Brian L. Nick" <[EMAIL PROTECTED]>
Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]>
08/28/2001 02:09 PM
Please respond to "ADSM: Dist Stor Manager"
To: [EMAIL PROTECTED]
cc:
Subject: Re: TSM for OS/390 poll
I am getting ready to reorganize my TSM on OS/390 configuration and was
wondering how everyone else does it ?
For those folks running TSM on OS/390:
1. Do you MIRROR your DB ? If not, why not ?
No. We are comfortable with the reliability of the mainframe DASD
and it's own recovery.
2. Is/was there a noticable difference/benefit when you first MIRRORed
the DB ? Or did you start out MIRRORed ?
Never mirrored.
3. How big is your DB ? Mine is currently 17GB and complaining about
being over 85% utilized
Our TSM DB is 37.5gb 73% utilization.
4. What if any pitfalls/negatives to MIRRORed DBs ?
I can't answer that question as we were never mirrored.
===========================
Zoltan Forray
Virginia Commonwealth University
University Computing Center
e-mail: [EMAIL PROTECTED]
voice: 804-828-4807
