On 21/03/2016 9:14 PM, R.S. wrote:
Well,
I observed 1,3M IOPS on EC12 or z196 machine during WAS installation.
With minimal CPU utilisation (I mean regular CPU, I haven't checked SAP).
IMNSHO a PC server with collection of new shining Emulex cards has
waaaay worse I/O capabilities.
We did some tests of database operations on PC. Effects are unequivocal.
I admire you honesty :) What class of PC server? Was it connected to a
SAN and did it offload I/O to a peripheral device?
BTW: Typical z/OS I/O workload is very different from PC workload.
Much less IOPS, much more data, much less CPU%.
My wife used to work for HDS and I had some interesting conversations
with some of the engineers she used to work with. That was a few years
ago but in their opinion the
high end *nix servers could match a mainframe for I/O throughput. PC
commodity hardware is different but racked up with enterprise kit I
would be interested to know how
they would shape in a drag race. How would a Dell blade with Infiniband,
SAN and enterprise class HBAs compare?
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