ibm-main wrote:
From: "Edward E. Jaffe"
...
Speaking of parallel sysplex, I just set one up for testing purposes
using z/VM's "Coupling Facility Simulation" feature which neither uses
nor supports real links to real coupling facilities. Though it loads and
uses the CFCC LIC from the hardware, z/VM prevents CFCC from spinning
without requiring use of the kludgey, stupid, and slow DYNDISP setting.
C'mon Ed, this hasn't been an issue since z/OS 1.2.
Certainly on z/900 and 990 - I'll check the z/890 we have running a CF LPAR,
but I'd be *mighty* surprised if it wasn't true there as well.
Not sure what you mean by "... this hasn't been an issue since z/OS
...". AFAIK, I have configured the _one and only way_ to have a parallel
sysplex of z/VM guests. (This isn't new. The CF Simulation support
appeared years ago in VM/ESA 2.3. It's just the first time I tried using
it.) And, because of the way z/VM "fools" the CFCC code, I can probably
set up dozens of test parallel sysplexes before my system starts to run
out of gas. I'm impressed by it, even if you're not.
--
-----------------------------------------------------------------
| Edward E. Jaffe | |
| Mgr, Research & Development | [EMAIL PROTECTED] |
| Phoenix Software International | Tel: (310) 338-0400 x318 |
| 5200 W Century Blvd, Suite 800 | Fax: (310) 338-0801 |
| Los Angeles, CA 90045 | http://www.phoenixsoftware.com |
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