Originally posted by: apple08

Dear AIX gurus,
we have 2 vio servers and all the san storage disk assignment is from vio to clients are trough vio server.
do we need to restart the client everytime we assign and set attribute?

since vio is more on sharing cable (less cable), less hba card, network card etc, is vio is an ideal setup for production environment which having 10 lpars that are very resource intensive and require high bandwidth for network and intensive read/write to disk?

Many thanks in advance.
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Originally posted by: ostost

I'm not exactly sure what you mean with the first question.

If you mean whether a VIO client needs to be restarted if a new disk is assigned to it the answer is no. You simply map the new disk to the virtual adapter in the VIOS and then run cfgmgr in the client partition.

If you mean whether a VIO clients needs to be restarted after an attribute has been changed it would be interesting to know what attribute is changed and where (on the VIO server or client)?

VIO is definitely suitable for productive environments. I have seen many server running productive workloads of all kinds using shared Ethernet and SAN access through a VIO without any performance problems. If the Virtual I/O Servers CPU and memory is properly sized and you use sufficient network and FC adapters you should see no performance problems while you can take advantage of the flexibility that Virtual I/O provides.
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