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
•