[shannong]

Can anyone give me some good guidlines for when not to use VIO. All of our LPARs are setup with VIO and are working fine but I have a new application that I'm getting ready to deploy that insists it needs dedicated adaptors. It is a data warehouseing application that needs to move a lot of data in a short amount of time.
What are the pros and cons for VIO in this situation.
Thanks in advance!
shannong

[duke900ssd]

Cons: It will be wasting expensive resources when it is not fully utilising them and other LPARs could be.
Pros: Can't think of any - try another software vendor or test it on VIO to see if it will work for you.
There are some dynamic LPAR work load tools, try WLM PLM on google.

[cdelgadop]

Hi

Those datawarehouse appls usually does a lot of I/O secuencial processing as part of their data mining and ESS tasks, you can apply some AIX tuning techniques to improve this behavior.

Hmmm, what kind of Storage Box do you have backing your VIOS devices ??, i mean if your SAN storage supports load balancing between two or more HBAs like EMC2 Symmetrix, IBM DS8100, Hitachi Tagma, i think you can use VIOS for this role.

Can you create a test enviroment and make a proof of concept ??