Re: Linux in a sub-system?

[rob@xxxxxxxxx]

Terminology confusion.

Linux can be done two of three ways.  I am sure you weren't talking about 
running Linux on an IXS card so let's forget about that.

The other two are GUESTED and non guested.

A guested linux lpar runs underneath an I5/OS lpar.  There are some 
advantages of doing it that way.  The biggest being able to add drives on 
the fly to the linux lpar.  We do that midweek all the time here.  On our 
5TB (just busted that hurdle with the last disk drive) i5/os lpar 2.1TB is 
allocated to a guested Linux lpar.
Guesting is VERY similar to running IXS cards.  You still use WRKNWSD and 
WRKNWSSTG and that rot (or iNav if you like a pretty interface).

You still carve out memory and processor and segregate that.  We use the 
HMC for that.

The con of guesting is that if you drop the i5/os lpar the Linux lpar is 
dead also.

Rob Berendt