IBM Systems Magazine, Mainframe - January/February 2014 - 24

of all available compute hardware
and software functionality. That
is, in fact, how you define the
mainframe, and from a functional
point of view, it's very much the
same thing."
More than simply acting as a
cloud in a box, the mainframe
supports more recent notions
of cloud. To that end, IBM has
deployed several tools that ease
this implementation, including
CSL-Wave, which makes it
much easier for administrators
to manage and deploy a cloud
instance, and the venerable
capacity on demand, which
allows system administrators
to turn resources on and off as
needed, whether natively within
the mainframe or in a cloud
environment.
And that's baked into
the mainframe, much like
virtualization. Rather than being
bolted on as an afterthought,
System z VMs, which have been
running on the mainframe for some
30 years, are a basic component
of the mainframe hardware. They
allow virtualized workloads to
run very efficiently at near nativehardware speeds. Considering how
many current mainframe users are
offloading some of their processing
to virtual environments, this isn't a
trivial issue.
It allows for tight coupling
between native z/OS* workloads
with virtualized workloads,
essentially creating an end-toend and seamless integration of
the two. "A huge advantage we
have is how we virtualize our I/O
subsystem. So we're going beyond
just CPU and memory to also
include I/O adaptors, whether
they're for storage or networking,"
Frey says.
This is part of what allows the
System z platform, which delivers
economies of scale to reach nearly
100 percent system utilization, to

can isolate one operation
from another in such a way that they're invisible to each other.
This is a tremendous security feature, and few can actually
use that famous word 'ensure.' Not 'hope,' not 'wish,' but
'guarantee.' And this isn't overblown. It's simply a fact."
-Bernard Meyerson, IBM Fellow and VP, Innovation

"I always
say that it's
sort of like
the 'Mission:
Impossible'
tape. If you
pull one of
those cards
out, the data
gets destroyed.
As a result,
people don't
have to worry
about any type
of exposure to
the data that
was once
on it."
- Jeff Frey, IBM
System z CTO

24 // JANUARY/FEBRUARY 2014 ibmsystemsmag.com

lap the competition. It's especially
apparent with Linux, which was
running on the mainframe well
before other server vendors even
got out of the tinkering stage.
Whereas many organizations
use x86 boxes to run Linux, some
of those systems are often woefully
underutilized to the extent of 10 to
15 percent, Frey notes. By pushing
those workloads to the mainframe,
however, that issue largely
disappears, and Linux users are
then able to run hundreds, if not
thousands, of virtual Linux images
on a single System z box.
This saves money not only in
terms of x86 overhead, including
data center space, energy
consumption and administration,
but also software licensing fees.
For example, some database
vendors charge per core. In the
one-off x86 world, this can add
up rather dramatically due to the
sheer number of cores running the
software. However, pushing that to
a mainframe that runs fewer cores
can massively reduce that cost.

Security and Availability
Of course, this would be all for
naught without the mainframe's
security and availability capabilities. On the security front, one
plays almost directly to cloud and
virtualized computing.
Because the System z platform
is so adept at simultaneously
multitasking, many different
operations can run at the same
time, including from different
organizations. On other platforms,

this might be a big hindrance,
as it's possible for data from
one organization-or even
intercompany departments-to
unintentionally bleed over
to another. In a hosted cloud
environment, this could result in a
complete security failure.
"The mainframe can isolate one
operation from another in such
a way that they're invisible to
each other. This is a tremendous
security feature, and few can
actually use that famous word
'ensure.' Not 'hope,' not 'wish,'
but 'guarantee.' And this isn't
overblown. It's simply a fact,"
Meyerson says.
This level of security stems
from the mainframe's end-to-end
integration. The back-end code
that runs on the mainframe is
a closely held secret that only a
few privileged-and trusted-
individuals can fully access.
Beyond securing the core of the
system, an entirely new generation
of analytics-based security
tools have been developed and
deployed. Rather than searching
for specific code, as most anti-virus
software packages do, best-ofbreed software runs continuous
analytics to explore for behavioral
attributes indicative of an attack,
potentially before it happens.
As Meyerson cautions, "You
can't look for a specific line of code
to warn you of an attack, as attacks
now often employ first-of-a-kind
code, thus defeating traditional
defenses. Instead, you use code
that renders your system self-


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IBM Systems Magazine, Mainframe - January/February 2014

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe - January/February 2014

Table of Contents
Editor's Desk: The father of innovation
IBM Perspective: Mainframe innovation continues
Trends: RDz family of tools helps organizations address new paradigms and business expectations
IT Today: Flash Express integrates secure, high-performance storage within System z
Case Study: Weather or Not: Met Office makes a cost-conscious and test-driven decision to consolidate Linux instances on the mainframe
Cover Story: The System z influence: How mainframe innovations have helped shape and reshape the IT world
Feature: Always moving forward: IBM's System z platform has many more tricks up its sleeve
Tech Corner: JES2 SAPI POST optimization can yield results
How To: How to successfully implement zBX hybrid computing
Solutions: Attunity Replicate 2.1, InSync Plugin, Storage Director 4.1
Stop Run: Coin collecting and history fascinate mainframe strategist
Reference Point - Global Events, Education, Resources for Mainframe
2014 Mainframe Solutions Edition Product Index
IBM Systems Magazine, Mainframe - January/February 2014 - Intro
IBM Systems Magazine, Mainframe - January/February 2014 - Cover1
IBM Systems Magazine, Mainframe - January/February 2014 - Cover2
IBM Systems Magazine, Mainframe - January/February 2014 - 1
IBM Systems Magazine, Mainframe - January/February 2014 - Table of Contents
IBM Systems Magazine, Mainframe - January/February 2014 - 3
IBM Systems Magazine, Mainframe - January/February 2014 - 4
IBM Systems Magazine, Mainframe - January/February 2014 - 5
IBM Systems Magazine, Mainframe - January/February 2014 - Editor's Desk: The father of innovation
IBM Systems Magazine, Mainframe - January/February 2014 - 7
IBM Systems Magazine, Mainframe - January/February 2014 - IBM Perspective: Mainframe innovation continues
IBM Systems Magazine, Mainframe - January/February 2014 - 9
IBM Systems Magazine, Mainframe - January/February 2014 - Trends: RDz family of tools helps organizations address new paradigms and business expectations
IBM Systems Magazine, Mainframe - January/February 2014 - 11
IBM Systems Magazine, Mainframe - January/February 2014 - 12
IBM Systems Magazine, Mainframe - January/February 2014 - 13
IBM Systems Magazine, Mainframe - January/February 2014 - IT Today: Flash Express integrates secure, high-performance storage within System z
IBM Systems Magazine, Mainframe - January/February 2014 - 15
IBM Systems Magazine, Mainframe - January/February 2014 - 16
IBM Systems Magazine, Mainframe - January/February 2014 - 17
IBM Systems Magazine, Mainframe - January/February 2014 - Case Study: Weather or Not: Met Office makes a cost-conscious and test-driven decision to consolidate Linux instances on the mainframe
IBM Systems Magazine, Mainframe - January/February 2014 - 19
IBM Systems Magazine, Mainframe - January/February 2014 - 20
IBM Systems Magazine, Mainframe - January/February 2014 - 21
IBM Systems Magazine, Mainframe - January/February 2014 - Cover Story: The System z influence: How mainframe innovations have helped shape and reshape the IT world
IBM Systems Magazine, Mainframe - January/February 2014 - 23
IBM Systems Magazine, Mainframe - January/February 2014 - 24
IBM Systems Magazine, Mainframe - January/February 2014 - 25
IBM Systems Magazine, Mainframe - January/February 2014 - 26
IBM Systems Magazine, Mainframe - January/February 2014 - 27
IBM Systems Magazine, Mainframe - January/February 2014 - Feature: Always moving forward: IBM's System z platform has many more tricks up its sleeve
IBM Systems Magazine, Mainframe - January/February 2014 - 29
IBM Systems Magazine, Mainframe - January/February 2014 - 30
IBM Systems Magazine, Mainframe - January/February 2014 - 31
IBM Systems Magazine, Mainframe - January/February 2014 - Tech Corner: JES2 SAPI POST optimization can yield results
IBM Systems Magazine, Mainframe - January/February 2014 - 33
IBM Systems Magazine, Mainframe - January/February 2014 - How To: How to successfully implement zBX hybrid computing
IBM Systems Magazine, Mainframe - January/February 2014 - 35
IBM Systems Magazine, Mainframe - January/February 2014 - 36
IBM Systems Magazine, Mainframe - January/February 2014 - 37
IBM Systems Magazine, Mainframe - January/February 2014 - Solutions: Attunity Replicate 2.1, InSync Plugin, Storage Director 4.1
IBM Systems Magazine, Mainframe - January/February 2014 - 39
IBM Systems Magazine, Mainframe - January/February 2014 - Stop Run: Coin collecting and history fascinate mainframe strategist
IBM Systems Magazine, Mainframe - January/February 2014 - Cover3
IBM Systems Magazine, Mainframe - January/February 2014 - Cover4
IBM Systems Magazine, Mainframe - January/February 2014 - Reference Point - Global Events, Education, Resources for Mainframe
IBM Systems Magazine, Mainframe - January/February 2014 - 2014 Mainframe Solutions Edition Product Index
IBM Systems Magazine, Mainframe - January/February 2014 - SE2
IBM Systems Magazine, Mainframe - January/February 2014 - SE3
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