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Our mission is to provide a
consolidated, tested, and recommended
set of service for
z/OS and key subsystems
on a quarterly basis with published results.
This means that when you order
your current service deliverable
(ShopzSeries)
you'll
receive and install
one recommended service package with a tested level of
service for all these products.
We test in a customer-like
production sysplex environment in an IBM test lab and
are continuously improving our CST
test environment.
We run batch and data-sharing applications that exploit and
stress the latest functions with up to two levels of
subsystems on three levels of z/OS systems.
As we test, we observe
how each product runs and how they
interact in this environment. We report
problems to the IBM Support Center.
We have the
following FMIDs
installed on our systems.
For more information about our environment,
see our
CST Quarterly Report.
We have a quarterly CST test cycle:
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Every quarter, we start our testing
by installing all
service from the prior quarter and run our
existing workloads. We also start
defining test scenarios that will
exploit new product functions.
During the second month of the quarter,
we run our new test scenarios,
identify problems and apply the fixes.
In the final month of the quarter,
we perform recovery tests
and run our workloads in a high stress environment.
Finally, at the end of the quarter, we publish our results
in the
CST Quarterly Report.
At the end of each month, between
quarterly recommendations,
we provide a delta recommendation
for customers whose preventive
strategy requires more frequent maintenance
updates.
The monthly recommendation
supports the most recently published
CST quarterly recommendation.
It includes HIPER and PE fixes
that have been installed at the
beginning of the month and
tested for the duration of the month.
We've changed
RSU so that
it contains the
consolidated, tested, and recommended
set of service for the z/OS platform.
All the service for the CST products included in the RSU have been tested
in our environment for
at least one month.
You still get RSU the same way, but with RSU you now get:
- Better testing of maintenance
- Maintenance recommendations from participating
product experts
- One consistent maintenance recommendation
across the platform
For more information, see:
As
quarterly and monthly recommendations become available,
we plan to
update this web site,
so make sure you check back
with us!
Each quarter we plan to
update all
service while each
month, we plan to
update the HIPER and PE
PTFs
we're
recommending.
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