From: Linux on 390 Port [mailto:LINUX-390@VM.M...] On Behalf Of Barton Robinson
Sent: Friday, April 20, 2012 1:46 PM
To: LINUX-390@VM.M... Subject: Re: Central vs. Expanded Storage - current recommendation
please make 20% of your storage ExStore. This only matters if you are storage constrained, so benchmarking differences when there are no constraints will not show a difference. When you become storage constrained, the 20% ExStore will easily show better performance.
Richards, Robert B. wrote:
> I was wondering what the latest recommendation is on managing storage for z/VM with several dozen Linux guests.
> We are moving a z/VM lpar (let's call it VM2) with 12.3GB CS and 2.3 ES to another CEC. Presently, VM2 competes with VM1 and a normally idle VM3 sysprog lpar for usage on one IFL.
> On the second CEC (both are z9BC boxes, btw), it will be the only user of the IFL.
> We are debating whether to define the memory as all CS or to leave the 2.3 ES alone.
> Running z/VM 5.4