IBM Systems Magazine, Mainframe - January/February 2018 - SE4
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After 30 years supporting the
mainframe, GTSG understands that
everyone reading this article felt the
pressure for at least one of these
Mainframe is our heritage; core of our
culture, one of the things we do best.
When clients ask us to look at
performance, we see primarily CPU,
with I/O and memory as a secondary
concern - usually in that order.
Performance Management focuses
on reducing the use of a resource:
Everyone has skills challenges.
We look at which skills are more
eﬀectively provided from a pool utilizing
a fractional resource model. We
match the time requirement to the
environment: you get what you need,
and more when you need it.
Minimize CPU consumption
Maximize memory usage for I/O
It's always a balancing act. We look
to eliminate consumption. Latent
demand needs to be reckoned with.
Latent demand sucks up all available
cycles... you have to measure
There are seven times as many CICS
transactions as iTunes downloads,
Instagram photos, Tweets, Facebook
likes, YouTube viewings, and Google
searches combined. There has never
been a greater need to keep the
mainframe available. Yet budget is at
a premium, "throwing hardware" at a
perceived capacity problem is no
longer a solution, and mainframe
teams are vulnerable to the "sneak
SLAs are increasingly missed
Help desk lines ring more often
Availability is questioned- is it
"available" if it doesn't meet the
needs of the business?
Sometimes, seasonal pressures put
a spotlight on smaller non-seasonal
We take a consultative approach
to understanding your problem,
whether it is MIPS reduction, batch
elongation, or workload management.
on a change-by-change basis - so
that you know you reduced resource
GTSG provides an environment for
mainframe SMEs where skills are
valued, and their needs for growth,
ongoing education and aﬃnity are met.
TALENT TO MAKE IT
Our clients typically want us to
function as part of the technical
support organization; part of the
client's team. We're bring a level of
ﬂexibility that comes from our scale
and our ongoing commitment to the
"Tenacious, focused and
determined. Easy to work with,
relentless and deep. They will
not ever let anything get in the
way." Major Automobile
The mainframe is here for the
GTSG has supported the mainframe
for nearly 30 years, and will
do so for the next 30 years - and
No matter what you do, it is rare that
the top line utilization bar moves in
the in the early days of an eﬀort.
Engine reductions of
20-40% are achievable
from a comprehensive
GTSG Can Help You.