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Old 10-08-2008
kimyo kimyo is offline
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Join Date: Sep 2008
Location: North Vancouver BC Canada
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AIX 5.3 MPIO vs RDAC on DS4000 range

Hi

I would like to ask what the benefits are of changing from RDAC to MPIO when connecting to a DS4000 on AIX 5.3? I have heard that IBM MPIO "might" support more than 1 active path to a LUN when connecting to a DS4800 through more than 1 host connection on the same AIX client. I understand that this will require specific AIX levels as well as DS4000 firmware levels. I am currently converting from 2 seperate VIO servers in one system to dual redundant path VIOS. Thus I will need MPIO on the VIO clients. However is it advised to run MPIO on the VIOS as well? and are there benifits in changing to MPIO on AIX 5.3 from RDAC?

Thanx
 

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