Feeds

IBM and Linux: the dinosaurs and the penguin

Popular mythology

  • alert
  • submit to reddit

Application security programs and practises

Not long ago, commentators were referring to mainframes as dinosaurs, heading for extinction. IBM's mainframe revenues were clearly in decline and high-end Unix servers, including even IBM's own variety, were threatening its existence.

Things were looking decidedly grim for the dinosaurs. That was until the dinosaurs did a deal with the Linux penguin. According to popular mythology, this is how it happened.

A group of developers in one of IBM's German Labs decided to run Linux under VM, provoked by a member of the Linux community who wanted to see Linux run everywhere. IBM invented VM, which stands for Virtual Machine, in the 1960s to allow users to test new releases of the operating system without disturbing the current version. It developed over the years and saw a good deal of usage as an operation OS. VM was the easiest and fastest way of getting the penguin to run with the dinosaur.

Legend has it that several IBM executives got to know about the Linux project and advised the developers involved to desist. They didn't, it turned into a skunk works. They got Linux working and demonstrated the running of thousands of Linux instances on the mainframe. Because the educational world became interested, IBM executives changed their minds. Then, IBM looked at the Linux market and decided that it wanted in; suddenly mainframe Linux was part of the strategy.

Mainframe Marketing

IBM began marketing mainframe Linux in earnest this year and has seen a good deal of success. It has gone public on some of the deals.

Last year, IBM announced a deal with Telia, the Scandinavian Telco which involved replacing 70 web hosting unix servers (from Sun Microsystems) with a single IBM mainframe (model S/390 G6) hosting more than 1500 virtual Linux servers. Telia's motivation was cost-saving plus higher availability and reliability.

In April this year IBM announced a deal with Banco Mercantile of Venezuela, one of Venezuela's largest banks. The deal was worth about $3 million and involved replacing 30 Windows NT servers with a mainframe running a Linux partition. These servers are Internet domain servers, web servers and firewalls.
The second stage of the project will involve moving applications from Sun and Hewlett-Packard Unix servers into the Linux partition.

Later in the year, the Securities Industry Automation Corp. (SIAC) and its subsidiary Sector decided to move an application called Artmail to the mainframe Linux platform. Artmail is used by the New York Stock Exchange and the American Stock Exchange to deliver daily activity reports, as well as distribute billing and commissions to Wall Street stock brokers and traders. The application moved from 180 Sun SPARC servers to a single IBM mainframe.

This is the tip of the iceberg. With most sites that opted for mainframe Linux, server farms of small servers with low resource utilisation had grown up. The Linux mainframe consolidates these separate resources into an environment where efficient resource sharing is possible.

There may also be other factors involved in such implementations, such as implementing SAN technology, which have little bearing on Linux or its alternatives, but also can save money. Consolidation is the name of the game and Linux is usually part of the equation.

Mainframe Linux offers benefits beyond the zero licensing cost. It's a matter of operational overhead. In most environments, it takes roughly one person per shift to support five or six servers. If you consolidate tens or even hundreds of servers into one or two mainframes, the staff requirements diminish dramatically. You are also likely to get better availability and better resilience, you'll take up a lot less floor space and a whole host of system and network management tasks become a lot easier.

It is possible to do server consolidation without using mainframes and without using Linux, and it is also likely to save money - even large amounts of money. But, IBM has a big mainframe customer base which does not need to be taught about the ease of management of a mainframe, and many also have server farms. It is a ready market.

More surprisingly, IBM is now picking up new mainframe customers. In October IBM claimed to have shipped its 1000th zSeries machine, mostly with the help of Linux. The dinosaurs are back - accompanied by penguins.

© IT-Analysis.com.

Eight steps to building an HP BladeSystem

More from The Register

next story
Sysadmin Day 2014: Quick, there's still time to get the beers in
He walked over the broken glass, killed the thugs... and er... reconnected the cables*
Apple fanbois SCREAM as update BRICKS their Macbook Airs
Ragegasm spills over as firmware upgrade kills machines
Amazon Reveals One Weird Trick: A Loss On Almost $20bn In Sales
Investors really hate it: Share price plunge as growth SLOWS in key AWS division
SHOCK and AWS: The fall of Amazon's deflationary cloud
Just as Jeff Bezos did to books and CDs, Amazon's rivals are now doing to it
EU's top data cops to meet Google, Microsoft et al over 'right to be forgotten'
Plan to hammer out 'coherent' guidelines. Good luck chaps!
US judge: YES, cops or feds so can slurp an ENTIRE Gmail account
Crooks don't have folders labelled 'drug records', opines NY beak
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.