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Project: Linux  Interviews
Robert LeBlanc, VP, IBM, Software Strategy, Software Solutions Division
By Prakash Advani <prakash@NOSPAMfreeos.com>
Posted: ( 2000-12-20 04:57:18 EST by )
Robert LeBlanc was part of the original team that evaluated Linux, the open
source movement and decided that this was where IBM should be. IBM's
recently announced billion dollar fund is proof that IBM is serious
about Linux. Here, Mr. Robert LeBlanc talks about a variety of issues
including the reasons for choosing Linux, the status of Monterey and
the release of AIX code into the open source community.
How and why did IBM decide to support Linux when they already have their own OS? The shift started about two years ago. An internal effort was started and
I was also part of this team of 6-7 people. We wanted to know what this thing
was and whether we needed yet another OS. We also looked at open source.
Open source had far more benefits in terms of process. There was a lot of
vigor in the process, lot of value in the process. It was a self-policing
environment. If you did good work, you got noticed and got to do more good
work. If you didn't pull your weight then you were shunned by the
community. We also liked Linux. It was built right from the ground up. A
small kernel which was very important as was the ability to add modules.
Linux could scale upwards and downwards. The open source model was very
good. We saw that Linux as an OS had very strong technical underpinnings.
Another point to note was that customers were wanting a more open
environment. We had just been through the Internet evolution and we saw
the power of the Internet a lot before our competitors did. We were also
members of the Apache project. The world did not need another web server,
but the world needed a very good web server that could grow and expand. The
world did not need another OS, but what the world did need was a common OS
that was open source and scalable. We made the decision 18 months ago.
We're way ahead of HP and Sun. So it's customer demand and we're giving
them what they want. Will IBM not support the other Unixes like the BSD?s? Right now we have no plans for that. One is just a variation of the
other. The decision had a lot to do with market momentum which was behind
Linux at that point. FreeBSD is a good OS but so is Linux. The world does
not need two open source operating systems. We've been through the Unix
evolution and we have seen what fragmentation does. Customers really don't
care which OS they use. They ask IBM for help here. So we made a conscious
decision to go with only one OS. IBM has also made contributions to Project Monterey, which is kind of
competition to Linux. Project Monterey was actually started before Linux did. When we
started the push to Monterey, the notion was to have one common OS for
several architectures. The notion actually came through with Linux which
was open source and supported all hardware. We continued with Monterey as
an extension of AIX to support high-end hardware. AIX 5 has the best of
Monterey. Linux cannot fill that need today, but over time we believe it
will. To help out we're making contributions to the open source movement
like the journal filesystem. We can't tell our customer to wait for Linux
to grow up. They need solutions today. So if Linux grows up, will you abandon Monterey? You're speculating that if all were equal, I'd rather be on one OS
than the other. There are always customers that have written software for
AIX API's and might want to use the capabilities of Monterey. We're trying
to make they co-exist. We're trying to allow customers to write to Linux
API's that run on top of a Monterey based OS. What about the other way round? AIX apps running on Linux? Yeah. If Linux had all of the capability of AIX, where we could put
the AIX code at runtime on top of Linux, then we would. Are you doing anything? Right now the Linux kernel does not support all the capabilities of
AIX. We've been working on AIX for 20 years. Linux is still young. We're
helping Linux kernel up to that level. We understand where the kernel is
is. We have a lot of people working now as part of the kernel team. At the
end of the day, the customer makes the choice, whether we write for AIX or
for Linux. Will AIX be open source? We're willing to open source any part of AIX that the Linux community
considers valuable. We have open-sourced the journal filesystem, print
driver for the Omniprint. AIX is 1.5 million lines of code. If we dump
that on the open source community then are people going to understand it?
You're better off taking bits and pieces and the expertise that we bring
along with it. We have made a conscious decision to keep
contributing. There are some things that the Linux community can do
better. Linus is worried that there is too much code in the kernel and
it's taking longer and longer to get a new release out. So, we could open
source AIX but it is just not practical.
IBM
Monterey
AIX
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