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Volvo IT’s Mainframe journey
Volvo IT
Inspired by Volvo IT Mainframe 2023
1
September 2013
Volvo IT
What is a mainframe – part I
Volvo IT
Inspired by Volvo IT Mainframe 2023
3
September 2013
AGENDA
 Välkomna & Introduktion
– Facilitator: Ronny Wester
 Continuous Availability
– Volvo IT: Jonas Elmquist
 Volvo IT säkrar Mainframe-kompetensen
– Volvo IT: 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
Volvo IT
Introduktion
Volvo IT
Inspired by Volvo IT Mainframe 2023
5
September 2013
AGENDA
 Välkomna & Introduktion
– Facilitator: Ronny Wester
 Continuous Availability
– Volvo IT: Jonas Elmquist
 Volvo IT säkrar Mainframe kompetensen
– Volvo IT: 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
Volvo IT
Continuous Availability
24 hours a day
7 days a week
365 days a year
Volvo IT
Inspired by Volvo IT Mainframe 2023
7
September 2013
Redundancy as a Philosophy
Duplicated data centers.
Logging of all system activities.
Redundancy in hardware &
communication.
Physical security.
Diesel power generators.
Volvo IT
Inspired by Volvo IT Mainframe 2023
8
September 2013
Mainframe at Volvo IT
Volvo IT
Inspired by Volvo IT Mainframe 2023
9
September 2013
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 (*)
 Volvo IT Maintenance Windows
- planned => may imply unwanted unavailability.
- 2 occasions at daylight saving times  HW Maintenance
(*) A D/R solution may somewhat mitigate unavailability.
Volvo IT
Inspired by Volvo IT Mainframe 2023
10 September 2013
How to mitigate?
Volvo IT
Inspired by Volvo IT Mainframe 2023
11 September 2013
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.
Volvo IT
Inspired by Volvo IT Mainframe 2023
12 September 2013
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.
Volvo IT
Inspired by Volvo IT Mainframe 2023
13 September 2013
Benefits with Continuous Availability
 No single point of failure.
Loss of a server transparent to
the application, workload
redistributed automatically.
 Peer instances => take over
Each system is still individual.
recovery responsibility.
 Automatic restart on still
healthy systems.
Volvo IT
Inspired by Volvo IT Mainframe 2023
14 September 2013
Continuous availability even
during changes.
Design Goal – no application
changes.
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.
Volvo IT
Inspired by Volvo IT Mainframe 2023
15 September 2013
Continuous Availability for Linux on z
VM06
VM03
CSE
Linux
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.
Volvo IT
Inspired by Volvo IT Mainframe 2023
16 September 2013
3 methods
• Clustering.
• Semi cluster with automated scripts.
• Live Guest Relocation.
Volvo IT
Inspired by Volvo IT Mainframe 2023
17 September 2013
Volvo IT’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.
Volvo IT
Inspired by Volvo IT Mainframe 2023
18 September 2013
AGENDA
 Välkomna & Introduktion
– Facilitator: Ronny Wester
 Continuous Availability
– Volvo IT: Jonas Elmquist
 Volvo IT säkrar Mainframe-kompetensen
– Volvo IT: 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
Volvo IT
What is a mainframe – part II
Volvo IT
Inspired by Volvo IT Mainframe 2023
21 September 2013
”Volvo IT säkrar
Mainframe-kompetensen ”
Presentation av Carl-Magnus Carlsson,
Volvo IT
 Se separat presentation.
Volvo IT
AGENDA
 Välkomna & Introduktion
– Facilitator: Ronny Wester
 Continuous Availability
– Volvo IT: Jonas Elmquist
 Volvo IT säkrar Mainframe-kompetensen
– Volvo IT: 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
Volvo IT
”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, Volvo IT.
 Ann Hedlund
Tel: 016-5415100 E-post: [email protected]
Volvo IT
AGENDA
 Välkomna & Introduktion
– Facilitator: Ronny Wester
 Continuous Availability
– Volvo IT: Jonas Elmquist
 Volvo IT säkrar Mainframe-kompetensen
– Volvo IT: 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
Volvo IT
”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: 0707-930059 E-post: [email protected]
Volvo IT
Volvo IT