Well, I have customers running both AIX and RHEL, and my experience this far is 
that AIX still outperforms RHEL on I/O performance. It might be that the 
systems running AIX usually have more expensive/higher performance equipment 
connected to them than their RHEL counterpart.

I also prefer the device management on AIX compared to Linux (IBMTape, storage 
device management, LVM) aswell as the cluster capabilities that are provided. 

But in the end, I guess it all comes down to what competence you have in-house, 
and what the budget is. Linux is still a very competitive option.

Regards

Daniel


Daniel Sparrman
Exist i Stockholm AB
Växel: 08-754 98 00
Fax: 08-754 97 30
daniel.sparrman AT exist DOT se
http://www.existgruppen.se
Posthusgatan 1 761 30 NORRTÄLJE


-----"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> skrev: ----- 
Till: ADSM-L AT VM.MARIST DOT EDU
Från: "Allen S. Rout" 
Sänt av: "ADSM: Dist Stor Manager" 
Datum: 10/06/2011 22:46
Ärende: [ADSM-L] Check signals on Power vs. x86...

I'm looking around for an update on my expectations that power hardware
and AIX is more performant per memory/CPU/IO than x86 and RHEL.

I know this topic comes up from time to time; I don't think I've seen it
rehashed particularly recently.

I'm an advocate of AIX for this, but I wanted to check signals and
experiences, again.


- Allen S. Rout