Download zAAP, System z9 Application Assist Processor

Krotíme dinosaury
JAVA EE, Spring, GWT a Agile
na Mainframu
Igor Kopřiva
Roman Štrobl
Zdeněk Stupňánek
Mainframe – what the heck is it?
• Mainframe has certain future
• Simpler management; cost optimal; web apps
• “Big Iron” - used by large enterprises for critical
applications
• Computing power vs. data throughput
• Reliability, Availability and Serviceability (RAS)
• Extreme backward compatibility – punch cards
• Native virtualization – LPAR, virtual machine
• Fault tolerant computing
• OSes
• IBM z/OS v. 10; 64bit
• USS, z/Linux, OpenSolaris for Mainframe (being ported)
Dig deeper
• Processor units
• CP, Central Processor: general-purpose processor
• IFL, Integrated Facility for Linux: dedicated to Linux
OSes (optionally under z/VM)
• ICF, Integrated Coupling Facility: designed to support
Parallel Sysplex operations
• SAP, System Assist Processor: designed to handle
various system accounting, management, and I/O channel
operations
• zAAP, System z9 Application Assist Processor:
currently limited to run only Java and XML processing
• zIIP, System z9 Integrated Information Processor:
dedicated to run specific workloads including DB2, XML,
and IPSec
zAAP processor
• Characteristics
• JAVA and XML workload can be offloaded to zAAP engine
• Microcode fixed to run JAVA only
• Transparent for JAVA applications
• No JAVA optimization implemented so far
• IBM JVM fully compatible with Sun JAVA
• Why bother then?
• zAAP is cheap!
Managing mainframe
• History
• Green-screen only
• Installation, updates etc. – manual copying of files
• Extremely time consuming and tedious work
• How maintenance installation differs on mainframe
• Temporary system vs. live targets
• Install, test, deploy, configure
• Current and future
• Sysadmins currently at retirement age
• Young people refuse manual actions where automation is
possible
• Mainframe Software Manager - MSM
Mainframe Software Manager
• What is it?
• Graphical tool to manage Mainframe installations
• Automates where possible
• Wraps up SMP/E complexity in wizards and simple screens
• Benefits
• Simpler - less lead-in time of sysprog
• Time/cost savings – hours vs. minutes
• Migration of current SMP/E installations to MSM
• Motto
• Designed by young developers for young users
MSM Configuration
• Tomcat running JAVA servlets on Mainframe
• Memory
• Speed optimizations
• JNI used for C/ASM based routines
• GWT based UI – CA modified
• Spring used for data access etc.
• POSIX compatible USS used
• JZOS – enhance batch capabilities and use of system i/f
DEMO
• GREEN SCREEN demo – Roman Strobl
DEMO
• MSM demo – Roman Strobl
JZOS
• Enhance batch capabilities
• Java app launched directly as batch jobs on z/OS
• Also using custom launcher
• Use of system i/f
Extensions provide APIs for Java access to
• z/OS operating system services
• z/OS-specific data types including VSAM data
MSM is Agile
• Iterative development
• Enhancements are added on a bi-monthly basis
• Priority driven enhancements planning
• Push for automated testing
• Backlog
• Populated by customers, internal requirements
• Periodically reviewed and prioritized
New features available to customers on a bi-monthly basis!
THANK YOU!
Q&A