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EVA6400, vSphere 4.1 and i/o

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inex
Super Advisor

EVA6400, vSphere 4.1 and i/o

Hi,

We have an EVA6400 with vSphere 4.1 hosts connected to it, using round robin on the servers. On a specific lun, will host ports on both controllers be used or only host ports on the managing controller?

-inex
3 REPLIES
Sivaramakrishna_1
Honored Contributor
Solution

Re: EVA6400, vSphere 4.1 and i/o

Hi,

Eventhough if you set to Round robin, it will use only the host ports on the managing controller. Both the controllers will not be used.
inex
Super Advisor

Re: EVA6400, vSphere 4.1 and i/o

In what scenario can you use all host ports? Is that only with windows hosts?

-inex
HenkW
Advisor

Re: EVA6400, vSphere 4.1 and i/o

Each LUN has a Lun-master. All actions to this LUN is done by the LUN master. IO's send to the other controller will be served by proxy. Works fine but is not the optimum.
You can spread the LUN's evenly over the controllers to make efficient use of all the ports and both the controllers.

My 2 cents