> In article <828r40$88nhv@fido.engr.sgi.com>, you write:
> |> On Fri, 3 Dec 1999, Sean Hunter wrote:
> |> > On Fri, Dec 03, 1999 at 05:31:01AM -0800, Jene S Quois wrote:
> |> > > Expanding the same question, what are the
> |> > > features that have been incorporated into the
> |> > > Linux kernel for high-availability,
> |> > > high-reliability and servicability ?
> |> >
> |> > I don't know what "servicability" is supposed to mean.
> |>
> |> "servicability" is a term coined by IBM to describe a set of O/S features
> |> that help system programmers and field engineers do problem determination
> |> more quickly. their goal was "first-time" capture of all information
> |> needed to diagnose a problem.
> |>
> |> this might include such things as kernel tracing and kernel-level
> |> debugging available (optional) in production kernels, automated panic dump
> |> capture, powerful kernel crash analysis tools, and extensive documentation
> |> and training available for system programmers who want to solve these
> |> problems themselves. it also might include special coding conventions
> |> (like "eye-catchers" in dynamically allocated blocks so dump analysis
> |> could identify how memory is used), and sophisticated logging of hardware
> |> error events like machine checks and disk errors.
> |>
> |> linux doesn't include these as standard features -- they are "value-adds"
> |> provided by independent patches and software distributors like Red Hat.
>
> SGI has developed almost all the things you mentioned, kernel tracing,
> debugging, powerful crash analysis tools, as well as other things like
> kernel lock metering and kernel profiling. Patches for all of them can
> be downloaded from our open source web site http://oss.sgi.com/projects
> along with many other open source technologies from SGI.
>
> Simon.
>
> --
> Simon Patience Phone: (650) 933-4644
> Silicon Graphics, Inc FAX: (650) 962-8404
> 1600 Amphitheatre Pkwy Email: sp@sgi.com
> Mountain View, CA 94043-1389
>
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We have also developed crashdump capability and elaborate crashdump
analysis tools. You can download them from our websight at
http://www.missioncriticallinux.com
Larry Woodman
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