z/Linux or Linux on the Mainframe

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Transcript z/Linux or Linux on the Mainframe

z/Linux or Linux on the Mainframe Eric K. Dickinson Presenter

Agenda

• • • • Biography Disclaimer The Mainframe Must Die!

zLinux

What Qualifies Me to Present?

• • • • • • • Been a nerd since 1979 Fixed computers and radars in the army AT&T Computer Systems System 5v4 1986 Became Richard Stallman fan 1989 Became Patrick Volkerding fan in 1993 Installed first z/Linux 2007 Became Government production 2009

Presentation

• • • • Not sponsored by the Government Not connected with the Government Not endorsed by the Government This is purely presented as a hobbyist.

The Mainframe Must Die!

• • Perceptions of the Mainframe – Words Hurt – Expensive – Huge – Dinosaur zSeries Servers – Enterprise – Scalable – Velociraptor

zSeries Server Vocabulary

• • • • • • • • LPAR FICON and FCP DASD Cryptography Accelerator z/VM 64bit Operation IFL Books

LPAR

• • • • • • • Hypervisor Virtualized Systems Physically Unconnected Hipersockets 60 LPARS Memory Isolation Variable Workload

• • • Both – 4-8G – 1600 MBps FICON and FCP Fiber Connectivity – Multiple Concurrent – Additional CRC – Same Cables as FCP Fiber Channel Protocol – Switched Fabric – SCSI

DASD

• zLinux uses – Direct Access Storage Device • CKD Count Key Data • FBA Fixed Block Architecture – FCP • SAN • NAS • SCSI

Cryptography Accelerator

• Off-loads Cryptography Processing – 128 bit AES – DES – SHA – Independent Random Number Generator

• • • • • Hypervisor Monitoring Tunable Isolated Memory Hipersockets

z/VM

• • 31 bits?

64 bits?

64bit Operation

IFL

• • • Integrated Facility for Linux Tuned to Only Linux Processor Instructions 256 Theoretical guests.

Books

• • • • Processors and Memory are in “Books” Hot Swappable Add Processors Hot Add Memory Hot

• • • • • • • • Is It Really Linux?

Distributions Configurations Strengths Weaknesses Well Suited For Who uses it?

How Do I do it?

z/Linux

• • • • • • • •

Is It Really Linux

Not Emulated Complete Native Operating System Formally Released 2000 Linas Vepstas Big-Foot, Think Blue Open Source Gartner Reports the Future of Government and Big Business Makes IBM OSS friendly

Distributions

• • • • • • • • Red Hat RHEL6 Novell SuSE SLES 11 Debian Gentoo Slackware CentOS Fedora Etc

Configurations

• • • • • • • Just Like Real Linux Multiple Network Interfaces Logical Volume Management (Grow on the Fly!) RPM, APT-GET, YUM, YAST and Source LAMP Oracle, DB2, MySQL PHP, Perl, JBoss, Java, Ruby (This list goes on)

• • • • • • • • •

Strengths

Costs (Most Important) Enterprise Class High Availability Standard Development High I/O Industry Direction Security Support Ubiquity

Weaknesses

• • • Processor Intensive Package Availability z/VM Knowledge

• • • • •

Well Suited

LAMP Applications – CMS (Content Management System) • • Wiki (Mediawiki, Twiki, Swiki…..) Blogs (WordPress…..) • CMS (Drupal, Openpublic, Joomla, OpenPublish….) Databases – MySQL, Oracle, DB2, Postgress …… Email – Sendmail, Postfix….

Security – Scanning (Nessus, Satan, Sara… – Firewall – IPTables So Many Others

Who Uses z/Linux?

• • • • • CMS Center for Medicade/Medicare Services NIH National Institutes of Health SSA Social Security Administration State Farm Many others

How Do I Do it?

There is plenty of help on the internet.

• • Detailed instructions may be found http://www.turbohercules.com/projects/zlinux/ http://linuxvm.org/info/howtos/hercules.html

• • Support may be found at http://www.turbohercules.com/services/ http://www.hercules-390.org/

Greening the Data Center

• • • • No Additional Power No Additional Cooling No Additional Floor Space Use Resources More Efficiently

Questions?