>Depends on what your workload is. >If you've got long running batch they'll run in twice the time!
NOT, if they're I/O-Bound. Again, it depends. You have to know your workload, as stated, and do the analysis. We had an IMS/FP, CICS, DB2 environment, on a 9021. When we went to a 9672, Amdahl was the one sowing U&D, regarding the drop in CPU speed. The thing that suffered was not batch, nor CICS, but DB2 & IMS/FP. The latter two sacrifice CPU to reduce I/O dependency, therefore suffered a bit. The former had a high I/O content, and were immeasurably affected. My bias, through the school of hard knocks, is to always have at least three. The reason, simply put, is there are three main uses: 1. System 2. User 3. Contingency in the even of looping, extended recovery, or long running high priority task(s). But, results may vary, has not been tested in laboratory conditions, believe at your own risk, and it depends. - I'm a SuperHero with neither powers, nor motivation! Kimota! ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
