Hello Bill,
Comments on the random thoughts.
1) z890 will 1.75 times the MP3000.
2) Correct about the memory.
3) Could you (would you) elaborate on DIMM exploitation? DATA
spaces
Or what else?
4) About 50/50 on the dedicated devices. We have a need to access
the
VSE/VSAM files from z/VM Service machines.
5) My original plan was to actually have both machines running and
working from the same external DASD. Then Migrate from the internal
DASD.
I have been told that this is not an option now.
I am pushing for one Escon channel to the new z890 to prove that
everything will work, then switch over. I am not comfortable
with
a push-out and put-in switch over going from the MP3000
(internal dasd/nic cards) to the z890 (all external dasd/OSA
adapters).
Thanks for everyone's opinions and hints and tips.
Ed Martin
Aultman Health Foundation
330-588-4723
[EMAIL PROTECTED]
ext. 40441
> -----Original Message-----
> From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED]
On
> Behalf Of Bill Bitner
> Sent: Thursday, May 25, 2006 10:50 AM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re: z/VM 5.2 on z800 with 8G of memory
>
> Ed, You might want to check out the following URL:
> http://www.vm.ibm.com/perf/tips/z890.html
>
> A couple random thoughts:
> * The new box should have enough extra processor
> to make up for the loss of I/O Assist.
> * You have enough memory to get around the paging
> possibility of V=V.
> * You might want to look at leveraging the
> additional memory for DIM exploitation.
> * I assume you are using dedicated DASD to get
> the full benefit of V=R/F today. That also
> means no benefit from MDC. In your new
> environment, you might want to revisit that.
> But I would wait if it were my system.
> * My traditional reminder: make as few changes
> as possible at one time.
>
> Bill Bitner
