Not necessarily...
It depends on what ends up on the swap disks.
If you barely see any swap in/out activity, you don't much care how much
of your swap space you are actually using.
What you don't want, generally, is having lots & lots of swap in/out
activity slowing the applications down (see
But according to the datasheets, upgrading, say, an H06 to an H13
"requires planned down time", so if you started small and then want to
grow, the only feasible (non-down-time) upgrade path is to buy a 2nd
mainframe, which, as you point out "won't scale painlessly".
With a COTS based system, you
the Server Farm: A Comparison
>
> Don't forget to consider the mainframe has a much smaller enironmental
> footprint that say 500 COTS.
> The cost savings in power comsumption, air conditioning, and floor space can
> be huge.
>
> On Thu, May 25, 2017 at 10:21 AM, Willemina K
To me, all this seems to suggest some weakness in the virtualisation
infrastructure, which seems odd for something as mature as z/VM.
So then the follow up question would be: is the host infrastructure
being used properly here? Is there not some other (managable) way to
set things up such that
