> As part of our server strategy we are investigating possibly running
> UniVerse on Linux.  This seems to pose a number of questions re the type of
> Linux to use.
> I have obtained 10.1.1 for RedHat but our Oracle team is leaning towards
> SUSE and we see that this is only listed on the Availability Matrix at
> version 10.0.8
> Is the matrix very out of date or is there a large difference between the
> different flavours of Linux.
Yes and yes.
There have been lots of posts about getting the pe versions to run on many distros 
after a little mucking about with install scripts.

Our initial install of UD6 on RH2.1ES failed but IBM had a patch to the install 
routine waiting for me the next morning which fixed the problem and everything has 
been solid since.  The moral of this was for support, go with the certified release.  
In this case I think the difference was very small but it still stuffed the install.

>  
> Are there good reasons to select one flavour over the other.  Opinions would
> be welcome on or off list.
IBM u2 support for RH and RH support are good reasons although as the other posters 
have said, this can be of mixed quality (isn't it always?).  This is an issue because 
U2 is only certified on RH on intel, for Oracle I presume you have much more choice.  
There are plenty of 3rd party places offering Linux support in Auckland and I presume 
in Wellington and IBM in Auckland have established a Linux support centre.

Other posters have mentioned the RH up2date service and while this is good, I'm a 
little gun-shy of just running patches untested on my production servers.  We have 
only been live a few weeks so are still fleshing things out but I suspect we'll run 
up2date on the development box before before running in on our live servers.

We are running UD6 on RH2.1ES (only UV is certified on RH3.0) at the moment on dual HP 
DL380G servers connected to an EMC SAN and it goes very fast.  Regarding all the posts 
on hyperthreading, we were advised by our supplier to turn hyperthreading off for 
RH2.1.

Regards,

Adrian Merrall
Cavalier Bremworth
Auckland, NZ.
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