Volvo IT s Mainframe journey

Transcription

1 s Mainframe journey Inspired by Mainframe September 2013

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3 What is a mainframe part I Inspired by Mainframe September 2013

4 AGENDA Välkomna & Introduktion Facilitator: Ronny Wester Continuous Availability : Jonas Elmquist säkrar Mainframe-kompetensen : Carl-Magnus Carlsson Så här bytte vi Mainframe-leverantör ICA AB: Ola Andreasson, Head of IT Operations Mainframe 2023 IBM: Thomas Wolf, Director System z Firmware Development

5 Introduktion Inspired by Mainframe September 2013

6 AGENDA Välkomna & Introduktion Facilitator: Ronny Wester Continuous Availability : Jonas Elmquist säkrar Mainframe kompetensen : Carl-Magnus Carlsson Så här bytte vi Mainframe-leverantör ICA AB: Ola Andreasson, Head of IT Operations Mainframe 2023 IBM: Thomas Wolf, Director System z Firmware Development

7 Continuous Availability 24 hours a day 7 days a week 365 days a year Inspired by Mainframe September 2013

8 Redundancy as a Philosophy Duplicated data centers. Redundancy in hardware & communication. Logging of all system activities. Physical security. Diesel power generators. Inspired by Mainframe September 2013

9 Mainframe at Inspired by Mainframe September 2013

10 Unavailability risks on Standard Services Primary Disc System Failures (requires IPL to startup LPAR to use Secondary Disc system). Failure in one or several sub systems (IMS, CICS, DB2 etc.) (*) Complete LPAR outage (*) HW failure (*) Maintenance Windows - planned => may imply unwanted unavailability. - 2 occasions at daylight saving times HW Maintenance (*) A D/R solution may somewhat mitigate unavailability. Inspired by Mainframe September 2013

11 How to mitigate? Inspired by Mainframe September 2013

12 Parallel Sysplex for z/os Up to 32 systems (LPARs) joined creating a powerful clustered system. Specialized hardware & software operating environment coupling facility control code (CFCC). Multi-system data-sharing technology no loss of data integrity. Hardware & software can be maintained non-disruptively. Transactions & queries can be distributed for parallel execution based on available capacity, not restricted to a single node. Inspired by Mainframe September 2013

13 What can Sysplex do for YOU? Platform for continuous availability - 24 hours a day, 7 days a week, 365 days a year. More work - Greater capacity. - Manage response time. - Further capacity & response time advances. Greater flexibility - Mix levels of hardware & software. - Dynamically add systems. - Easy path for incremental growth. - Workload balance. Inspired by Mainframe September 2013

14 Benefits with Continuous Availability No single point of failure. Peer instances => take over recovery responsibility. Automatic restart on still healthy systems. Loss of a server transparent to the application, workload redistributed automatically. Each system is still individual. Continuous availability even during changes. Design Goal no application changes. Inspired by Mainframe September 2013

15 Consequences Reduced capacity when one LPAR is lost. Thus maintenance should be planned to non peak hours. Critical applications should be Sysplex compliant, may imply OTC. Inspired by Mainframe September 2013

16 Continuous Availability for Linux on z VM03 VM06 Linux CSE Linux System data Application data PPRC Primary 3390 Mirror 3390 NFS / NetApp - The VM Linux-partions act backup for each other with capacity to take over all procuction machines from the other. - All disk configured reachable from both LPAR. Definition in SYSTEM CONFIG i n each machine what are on-line. - Cross System Extension admit shared disk between guests plus some Xlink / Xspool-funktionalitet. Inspired by Mainframe September 2013

17 3 methods Clustering. Semi cluster with automated scripts. Live Guest Relocation. Inspired by Mainframe September 2013

18 s offering A suitable customized Parallel Sysplex z/os environment for continuous availability. Linux on z services with continuous availability. => all to meet our customers business demands. Inspired by Mainframe September 2013

19 AGENDA Välkomna & Introduktion Facilitator: Ronny Wester Continuous Availability : Jonas Elmquist säkrar Mainframe-kompetensen : Carl-Magnus Carlsson Så här bytte vi Mainframe-leverantör ICA AB: Ola Andreasson, Head of IT Operations Mainframe 2023 IBM: Thomas Wolf, Director System z Firmware Development

20 What is a mainframe part II Inspired by Mainframe September 2013

21 säkrar Mainframe-kompetensen Presentation av Carl-Magnus Carlsson, Se separat presentation.

22 AGENDA Välkomna & Introduktion Facilitator: Ronny Wester Continuous Availability : Jonas Elmquist säkrar Mainframe-kompetensen : Carl-Magnus Carlsson Så här bytte vi Mainframe-leverantör ICA AB: Ola Andreasson, Head of IT Operations Mainframe 2023 IBM: Thomas Wolf, Director System z Firmware Development

23 Så här bytte vi Mainframe-leverantör Presentation av Ola Andreasson, ICA, Head of IT Operations Är du intresserad att ta del av ICAs presentation eller har du några frågor; vänligen kontakta Ann Hedlund,. Ann Hedlund Tel: E-post:

24 AGENDA Välkomna & Introduktion Facilitator: Ronny Wester Continuous Availability : Jonas Elmquist säkrar Mainframe-kompetensen : Carl-Magnus Carlsson Så här bytte vi Mainframe-leverantör ICA AB: Ola Andreasson, Head of IT Operations Mainframe 2023 IBM: Thomas Wolf, Director System z Firmware Development

25 Mainframe 2023 Presentation av Thomas Wolf, IBM, Director System z Firmware Development Är du intresserad att ta del av IBMs presentation eller har du några frågor; vänligen kontakta Hans Hägerström, IBM. Hans Hägerström Mobil: E-post: hansh@se.ibm.com

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