z/OS® Version 1 Release 12 provides significant value to your business
by delivering advanced real time capabilities designed to provide
higher performance, improved productivity, new levels of data
availability, and fewer disruptions and impacts to z/OS and the
business applications that rely on z/OS.
This release of z/OS delivers real-time capabilities for application
performance and data availability. With the new VSAM Control Area (CA)
Reclaim capability, applications that use VSAM key-sequenced data sets
(KSDS) can benefit from improved performance, minimized space
utilization, and improved application availability. For example, IBM
system tests indicate VSAM workload performance could improve by up to
44% (see Note) or more, in addition to helping you avoid outages that
used to be required to defragment and reorganize this data. Performance
improvements are anticipated for many applications using CICS®, VSAM,
IMS™ VSAM, and Catalog processing.
There are significant performance enhancements expected for other
workloads as well. For example, DB2 9 for z/OS (5635-DB2®) startup time
could be reduced (see Note), and z/OS XML System Services validation
parsing performance is anticipated to improve by 30-50% (see
Note). A revolutionary new fragment validation parsing
capability helps DB2 10 for z/OS (5605-DB2) pureXML™ avoid costly
re-validation of whole XML documents. In addition, SVC dump
capture time can be reduced by up to 50-90% (see Note).
Network performance is improved. Processing overhead for Application
Transparent - Transport Layer Security (AT-TLS) can be improved by 30%
(see Note). Network throughput for interactive workloads can be
improved by 30-50% (see Note) using the new Inbound Workload Queuing
(IWQ) function, which is exclusive to OSA-Express3 on IBM zEnterprise™
196 (z196) and System z10 servers. It is anticipated that IWQ
will provide benefit for streaming workloads by reducing the number of
costly network retransmissions due to out-of-order packets, and will
benefit Sysplex Distributor traffic by providing a more streamlined
z/OS is designed to learn from its own environment and can predict
system abnormalities and alerting you about potential problems before
they occur with its innovative Predictive Failure Analysis (PFA)
capability. Updated for monitor SMF data rates for z/OS V1.12, PFA can
be used to help identify abnormal trends of your running system,
allowing you to act before they become serious.
In the rare event of a system issue, a new base component, z/OS Run
Time Diagnostics, is designed to analyze key indicators on a running
system quickly and help identify the root causes of system problems and
degradations. The Run Time Diagnostics function is anticipated to run
in as little as one minute to return results quickly enough to help you
choose between alternative corrective actions more quickly and
The new z/OS
The z/OS Management Facility (5655-S28) is the new face of z/OS. It can
shave hours of time from system management tasks, and with embedded
guidance and best practices built in, new system programmers can be
productive in weeks. Capturing and analyzing incident data, configuring
TCP/IP network settings and z/OS Workload Management (WLM) policies,
and monitoring z/OS performance data have never been easier. z/OS
Management Facility V1.12 is in "lock step" with z/OS V1.12 and is
ready to help you use many of its latest features.
z/OS V1.12 provides simplified configuration of FICON®-connected disk
and tape through the revolutionary new z/OS FICON Discovery and Auto
Configuration (zDAC) capability. zDAC can automatically discover new or
updated devices and propose channel configurations based on high
availability best practices and your existing configurations, helping
preserve Parallel Sysplex® symmetric configurations. This
function is sophisticated and takes advantage of the robust I/O
subsystem that is only available with the new IBM zEnterprise 196
IBM introduces the new IBM zEnterprise System a revolutionary direction
in multi-tier, multi-system, multi-workload management and
coordination. The zEnterprise System is beneficial for all System z
workloads, but is especially ideal for z/OS workloads because it
supports and strengthens your z/OS environment by targeting the
technology and application tiers that, in turn, rely on these core
The combination of z/OS and the zEnterprise System can provide workload
management integration and insight (through integration with the
zEnterprise Unified Resource Manager), designed to provide both high
speed and highly secure networking (though the use of the physically
isolated data and service networks), and infrastructure simplification
(with fewer hops, devices, servers, and processors that can complicate
today’s data centers).
z/OS is designed to integrate seamlessly with the zEnterprise system –
only a handful of new configuration settings are needed to integrate
and execute in the new environment. In addition, DB2 9 for
z/OS and the IBM Smart Analytics Optimizer for DB2 for z/OS (5697-AQT)
are the first exploiters of the IBM zEnterprise BladeCenter®
optimizers. The IBM Smart Analytics Optimizer is designed to help
mitigate database administration costs while speeding up the
performance of typical data warehouse or OLAP-specific workloads by an
order of magnitude (Note).
Get the best of all worlds with z/OS V1.12 and the new IBM zEnterprise
System. Together, this revolutionary platform can extend the strengths
of z/OS by deploying multi-tier workloads in a consolidated,
simplified, and highly integrated environment. Bring many new
applications up close to z/OS.
September 24, 2010
- Read more on z/OS V1.12 (PDF)
- Read more on z/OS Management Facility (PDF)
Performance improvements based on IBM laboratory results, your results
- VSAM performance improvement is
through the use of VSAM Control Area Reclaim, actual benefit may be
more or less and will depend on the degree of VSAM data fragmentation.
It is anticipated that VSAM KSDS that are severely fragmented or rarely
reorganized will see more benefit.
- DB2 9 for z/OS startup time
reduction is through z/OS Allocation, DFSMSdfp™, and GRS improvements,
actual benefit will depend on number of data sets opened. It is
anticipated that address spaces opening up many thousands of data sets
will see more benefit.
- z/OS XML System Services
validation parsing performance improvement will depend on the amount of
data being parsed and the degree of complexity of the schema.
- Actual SVC dump time will depend
on amount of data being captured and the amount of that data dumped
from auxiliary storage.
- Actual AT-TLS CPU consumption
improvement will depend on amount of data being transmitted and whether
the workload is interactive or streaming. Throughput gain due to this
improvement in CPU consumption is likely, but would vary depending on
overall utilization of the z/OS image.
- Interactive networking response
time improvement is via z/OS. Communication Server exploitation of the
new OSA Express 3 Inbound Workload Queuing. Actual benefit will depend
on amount of data being transferred and if transfer is z/OS to z/OS, or
z/OS to distributed system.
- Actual IBM Smart Analytics
Optimizer CPU-intensive query performance improvement will depend on
the specific query workload.
Send us your questions and comments.