W dniu 2018-09-13 o 20:19, Phil Smith III pisze:
I keep seeing things like a mailing today, "Mainframes and the Cloud: Made for Each
Other". I'm as big a fan of IBM Z as the next guy, but I'm stumped as to what it is
about the mainframe that makes it so wonderful for cloud.
What it see:
* IBM Z storage is more expensive
* Mainframe MIPS are more expensive
* I/O bandwidth is not usually the issue (network, but not local)
Is this all just hype/hope? Or am I missing something?
Yes, few things.
First, what decides to choose given platform/OS? An application!
Yes, sometimes you haven't started writing it, but in many cases the
application already exist and determine (more or less) the OS.
Second, manframe abilities to serve resources fulfill definition of the
cloud (there many different ones). Yes, mainframe *is* cloud!
Third, when we consider wasted CPU cycles, ineffective storage usage,
etc then Windows is cheaper. However for busy systems doing "right work"
mainframe can be affordable.
BTW: Cloud does not exist. It's just someone else's computer.
--
Radoslaw Skorupka
Lodz, Poland
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