Why Mainframe Linux

8/9/2019 Why Mainframe Linux

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2009 IBM Corporation

Regarding Clouds, Mainframes,

and Desktops and Linux

Bob Sutor VP, Open Source and Linux, IBM SWG

LinuxCon 21 September, 2009


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Bob Sutor: Regarding Clouds, Mainframes, and Desktops...and Linux

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Abstract

Linux is key to driving innovative new technology as well as

business models.

It's shaking up the established view of which operating systems

should be used for what workloads, while slipping quietly undersome very cool new applications.

In this talk, I'll focus on three areas of great opportunity as well as

challenge for Linux: the accelerating market for cloud computing,

Linux as a significant operating system for mainframes, and the

hope for Linux on the desktop.


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3

Agenda

The cloud from a user's perspective

Oh, yeah, my mainframe with Linux does that

Possible futures for the Linux desktop

Some 2008 predictions, one year later


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4

Who is the user for cloud computing?

Could be ...

A user of a virtualized desktop on a thin or fat client.

A non-technical end user who accesses services through a browser or

via applications such as disk backup to remote storage. A cloud choreographer who strings together cloud-based services to

implement business processes.

A service provider who needs to handle peak load demands.

A developer who employs dynamic resource allocation in clouds to

speed application or solution creation.

An IT system administrator who does not build clouds but deploys onto

them, probably in addition to traditional managed systems.


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What does a cloud computing user want?

Cloud-friendly applications

Resources: storage, processor, platform

APIs: the more standard the better

Interoperability among clouds (may learn of this need later)

Reduced capital expense

A good, workable pricing scheme

Quality of service, including

Availability

Reliability

Performance

Security

Privacy

I don't think any one of thesecontradicts the use of Linux, andthey all potentially encourage it.


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Case study: IBM internal cloud for developers

Case Study Results

Annual savings: $3.3M (84%)

$3.9M to $0.6M

New Development

Software Costs

Power Costs

Labor Costs

(Operations andMaintenance)

Hardware Costs

(annualized)

Liberated funding

for newdevelopment,

transformation

investment or

direct saving

Deployment (1-time)

Software Costs

Power Costs

- 88.8%

Labor Costs

- 80.7%

Hardware Costs

- 88.7%

Note: 3-Year Depreciation Period with 10% Discount Rate

Without

Cloud

With

Cloud

100%

Current

IT

Spend

StrategicChange

Capacity

Hardware,

labor & power

savings reduced

annual cost of

operation

by 83.8%


7/24 2009 IBM Corporation


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What does a cloud computing provider need?

Maximum practical use of resources: processors, memory, storage

A good, workable pricing scheme

Virtualization, virtualization, virtualization

Acceptable licensing of operating systems being used

Highly reusable skills of system administrators

Minimal power used, heat generated, datacenter space needed

I don't think any one of thesecontradicts the use of Linux, andthey all potentially encourage it.




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What special about Linux here?

Linux supports multiple hardware platforms

Implementation span from embedded devices to supercomputers

Speed of support for new platforms

Availability of skills, portability of applications

Scale-out through clustering as well as scale-up through SMP

Linux has an affinity with virtualization and is being used in clouds

Supported on all major hypervisors, from z/VM to VMware and Hyper-V

Ability to be paravirtualized with Xen

Inclusion of KVM as part of Linux

Linux is flexible

Modular and customizable, with flexible usage licensing

Linux is developed by an open community

Sharing skills and resources, leading to faster development




9

Agenda








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Why people are using Linux on mainframes

Virtualization was introduced commercially on IBM

mainframes in 1972.

Hypervisor is integrated with the hardware

Sharing of CPU, memory and I/O resources Virtual network and virtual I/O

Reduced Total Cost of Ownership (TCO)

Environmental savings single footprint vs. hundreds of

servers

Consolidation savings less storage, fewer servers, fewersoftware licenses, less server management/support

Mainframe capabilities complement and enhance those

of Linux.




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Why people are using Linux on mainframes

Utilization often exceeds 90%

Manageability of centralized Linux systems

Typical deployment needs:

High performance transaction processing I/O intensive workloads

Large database serving

High resiliency and security

Unpredictable and highly variable workload spikes

Low utilization infrastructure applications

Rapid provisioning and re-provisioning

Mainframe characteristics complement cloud user requirements


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12 September 17, 2009

IBM's Project Big Green

Double compute

capacity with noincrease in consumption

or impact by 2010

IBM will consolidate and virtualizethousands of servers onto approximately 30IBM System z mainframes

Substantial savings expected in multipledimensions: energy, software and systemsupport costs

The consolidated environment will use 80%less energy and 85% less floor space

This transformation is enabled by theSystem z sophisticated virtualizationcapability

1997 Today

CIOs 128 1

Host data centers 155 7

Web hosting centers 80 5

Network 31 1

Applications 15,000 4,700


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13

Agenda






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It goes away.

We stop using desktops, so who cares?

The Linux desktop becomes a tactic instead of a strategy.

One Linux desktop distribution ends up with 90% marketshare

among those using Linux desktops.

One Linux desktop distribution ends up with 90% marketshare

among alldesktops.

We reach 33% / 33% / 33% parity with Microsoft Windows /

Apple Mac OS / Linux, plus or minus.


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We stop pretending that it will be a drop-in replacement for the

dominant desktop operating system, and make it something better.

The enterprise sweet spot for Linux desktops is virtualizedLinux

desktops.

We focus on usability, stability, security, reliability, performance, with

some cool thrown in.

It's the browser, stupid.


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An applicationrunning in a

virtualized Linuxdesktop on a

Linux rich client.


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Agenda






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2008 Prediction 1Green will drive significant initiatives in open source

This is happening as major customers such as banks move to

reduce their carbon footprints by consolidating onto mainframes,

often getting features such as disaster recovery as a bonus.

Aside from tangential benefits of using Linux, I'm not seeing much

yet in the way of open source being applied to green initiatives ina focused and specific way.

Linux will help reduce energy consumption through serverconsolidation, virtualization, load balancing and more efficient

resources management.


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2008 Prediction 2Linux will not be replaced

I doubt anyone can seriously argue that any other open source

operating system has made significant inroads on the growing

installed base of Linux in the last year.

Linux will be introduced to thousands more users via implementationsin mobile phones, though users may not know it.

Much of the hot technological action is happening on Linux, such as

virtualization, and this will be essential for cloud computing.

Linux will increasingly find itself competing against proprietaryvirtualization technologies.

Linux Inside?


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2008 Prediction 3Linux mindshare will be less x86 focused

In the cloud, users may not know there is Linux Inside, much

less x86 Inside.

From a device perspective, users will think less of operating

systems and chips, but more of user interfaces, media,connectivity, applications, app stores, and coolness.

Customers are more than capable of choosing the correct

hardware platform to match their planned workloads.

The instability and uncertainty in the industry this year is

causing customers to re-evaluate their software/hardwareplatforms and has been a great opportunity for Linux and

competitive winbacks.


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2008 Prediction 7Open standards will grab more attention

The Open Document Format (ODF) is being approved for use in

more and more countries around the world.

Recent adoptees include Malaysia, Norway, Ecuador, Venezuela,

Taiwan, Hungary, and Latvia. The Open Cloud Manifesto has over 250 companies and groups

supporting it.

The industry and users will benefit the most from an emerging

technology when open standards are at the core, and there as earlyas possible.


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Finishing up ...

Linux is at the center of the computing we have today and that which

we are building for tomorrow.

I believe the Linux community and

leadership will rise to tackleany challenges necessary to

meet and exceed

expectations.

Mainframes

Desktops Cloud


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For more information ...

IBM and Linux

http://www.ibm.com/linux/

Linux on IBM System z

http://www.ibm.com/systems/z/os/linux/ IBM Cloud Computing

http://www.ibm.com/cloud/

Bob Sutor's blog

http://www.sutor.com/blog

Open Cloud Manifesto

http://www.opencloudmanifesto.org/
http://www.ibm.com/linux/http://www.ibm.com/systems/z/os/linux/http://www.ibm.com/cloud/http://www.sutor.com/bloghttp://www.opencloudmanifesto.org/http://www.opencloudmanifesto.org/http://www.sutor.com/bloghttp://www.ibm.com/cloud/http://www.ibm.com/systems/z/os/linux/http://www.ibm.com/linux/


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NOTES:Linux penguin image courtesy of Larry Ewing ( [email protected]) and The GIMP

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