IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L19

A Better
Businesses see the benefits of using Linux on z Systems over scale-out servers
By Emily Farmer k Illustration by Wayne Mills

T

he IBM z Systems*
mainframe is well
established today as the
invaluable system of record (SoR)
for mission-critical business data
and applications. It has evolved
over the past several decades to
be the IT centerpiece of many
of the largest banks, retailers,
financial firms and healthcare
companies in the world.
Millions of other servers are
also in use. Server sprawl-
driven by huge numbers of
inexpensive, scale-out servers-
has increased at a phenomenal
rate. Since the introduction
of virtualization in the mid2000s, the number of VMs
supported on those servers has
also grown, with IDC reporting
that x86 servers are nearing
VM saturation (bit.ly/1LxnulL).
Although today's most critical,
complex and compute-intensive
workloads are candidates for
virtualization, these workloads
also have ever more stringent

requirements for performance
and service delivery.
For instance, analytics workloads support large databases
yet must also meet demand for
real-time response. Large clusters
of scale-out servers generally
don't have the sustained performance capacity or large-scale
memory and cache requirements
to adequately drive these workloads-database sharding (partitioning) has become popular
as a way around this issue-and
the vast network connectivity
requirements introduce even
more latency. Mobile workloads
not only put unexpected and
unpredictable performance
strains on IT servers, but they
also demand exceptionally fast
response times. As businesses
move beyond simple mobile
connectivity and into the API
economy, co-location of systems
of engagement (SoE) services
with SoR assets becomes critical
to maintain immediate response.

Takeaway
* Linux running on z Systems is a better
solution than scale-out servers to run
mission-critical business data and
applications, as it can efficiently drive
large workloads as well as consolidate
large numbers of smaller workloads.
* IBM z Systems servers are designed
with multiple levels of virtualization,
efficiently supporting large numbers
of business workloads, all in one box,
with each LPAR isolated from the others
and capable of running a separate
hypervisor.
* One of the best methods for comparing
different platforms is total cost of
ownership; large-scale consolidation
on IBM z will drive up utilization and
reduce core requirements, thus lowering
software costs.

Linux on z Systems NOVEMBER 2016 // 19

Linux_on_z_1116.indd 19

9/29/16 1:15 PM


http://www.ibmsystemsmag.com/mainframe/trends/linux/z-Systems-option/

IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book

Table of Contents for the Digital Edition of IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book

Table of Contents
Editor's Desk: Linux on Ibm Z Adoption Grows
Ibm Perspective: Linux on Z Systems Provides Financial Industry a Foundation for Blockchain
Small and Efficient: The New Ibm Z13s Can Consolidate Linux Workloads at a Lower Cost
Cover Story: Open to Opportunity: Why More Z Systems Clients Are Running Linux
Feature: Achieving and Advantage: Linux on Z Systems Enables the Api Economy and Microservices While Enhancing Hybrid Cloud Solutions
Feature: A Better Option: Businesses See the Benefits of Using Linux on Z Systems Over Scale-Out Servers
Trends: Plentiful Middleware Options: Co-Locating Analytics on Linux on Z Systems Adds Value
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L1
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L2
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - Editor's Desk: Linux on Ibm Z Adoption Grows
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - Ibm Perspective: Linux on Z Systems Provides Financial Industry a Foundation for Blockchain
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L5
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - Small and Efficient: The New Ibm Z13s Can Consolidate Linux Workloads at a Lower Cost
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L7
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L8
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L9
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - Cover Story: Open to Opportunity: Why More Z Systems Clients Are Running Linux
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L11
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L12
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L13
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - Feature: Achieving and Advantage: Linux on Z Systems Enables the Api Economy and Microservices While Enhancing Hybrid Cloud Solutions
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L15
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L16
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L17
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - Feature: A Better Option: Businesses See the Benefits of Using Linux on Z Systems Over Scale-Out Servers
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L19
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L20
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L21
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - Trends: Plentiful Middleware Options: Co-Locating Analytics on Linux on Z Systems Adds Value
IBM Systems Magazine, Mainframe - November/December 2016 Linux on z Systems E-book - L23
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