Open Source Market Segment LS
Open Source Market Segment RS
Wednesday, 24 April 2013 03:02

Linux on mainframes used more widely than you might think

By

Linux tends to be associated with x86 hardware in a business context, but some well-known companies are running it on mainframes.

"All of the large banks are using it [Linux on IBM System z], but don't want to talk about it," CA Technologies distinguished engineer Scott Fagen told iTWire.

Linux on System z has "huge advantages," he said.

Data warehouses and analytics systems typically run against systems of record that use IBM's DB2 database on System z: "the customers have spoken." Running Linux applications on the same mainframe rather than on smaller systems delivers performance improvements.

Organisations are tending to encrypt local networks to protect sensitive data flowing between systems, but that adds latency and slows the applications.

This encryption is not necessary if both systems are virtualised on the same hardware, and furthermore "you can't beat memory-to-memory speed," Mr Fagen observed.

He also sees the "repatriation" of systems to mainframes via Linux on System z. "Anything in Java just works," and IBM has been developing hardware to run Java applications very well, and CA Chorus provides "a tremendous improvement" in Java performance on new IBM hardware.

The big banks and insurance companies are "going after this pretty hard," he said, as it does not just reduce the cost of hardware and software, but also space, power and cooling requirements which are very important in some locations.

One mainframe can replace a large number of distributed systems, and the associated saving in network equipments "can be a real winner for a customer that understands what they are trying to get out of their system."

There is also a benefit when hardware upgrades are required, as IBM has a 'technology dividend' scheme that credits customers with a proportion of the cost of the capacity already owned. There is no equivalent in the distributed systems world, be said.

Disclosure: The writer attended CA World as the guest of the company.


Subscribe to ITWIRE UPDATE Newsletter here

GRAND OPENING OF THE ITWIRE SHOP

The much awaited iTWire Shop is now open to our readers.

Visit the iTWire Shop, a leading destination for stylish accessories, gear & gadgets, lifestyle products and everyday portable office essentials, drones, zoom lenses for smartphones, software and online training.

PLUS Big Brands include: Apple, Lenovo, LG, Samsung, Sennheiser and many more.

Products available for any country.

We hope you enjoy and find value in the much anticipated iTWire Shop.

ENTER THE SHOP NOW!

INTRODUCING ITWIRE TV

iTWire TV offers a unique value to the Tech Sector by providing a range of video interviews, news, views and reviews, and also provides the opportunity for vendors to promote your company and your marketing messages.

We work with you to develop the message and conduct the interview or product review in a safe and collaborative way. Unlike other Tech YouTube channels, we create a story around your message and post that on the homepage of ITWire, linking to your message.

In addition, your interview post message can be displayed in up to 7 different post displays on our the iTWire.com site to drive traffic and readers to your video content and downloads. This can be a significant Lead Generation opportunity for your business.

We also provide 3 videos in one recording/sitting if you require so that you have a series of videos to promote to your customers. Your sales team can add your emails to sales collateral and to the footer of their sales and marketing emails.

See the latest in Tech News, Views, Interviews, Reviews, Product Promos and Events. Plus funny videos from our readers and customers.

SEE WHAT'S ON ITWIRE TV NOW!

BACK TO HOME PAGE
Stephen Withers

Stephen Withers is one of Australia¹s most experienced IT journalists, having begun his career in the days of 8-bit 'microcomputers'. He covers the gamut from gadgets to enterprise systems. In previous lives he has been an academic, a systems programmer, an IT support manager, and an online services manager. Stephen holds an honours degree in Management Sciences and a PhD in Industrial and Business Studies.

Share News tips for the iTWire Journalists? Your tip will be anonymous

WEBINARS ONLINE & ON-DEMAND

GUEST ARTICLES

VENDOR NEWS

Guest Opinion

Guest Reviews

Guest Research

Guest Research & Case Studies

Channel News

Comments