HPE EVA Storage

EVA in order delivery

 
Sukhvinder Saraf
Occasional Contributor

EVA in order delivery

Why do we need to enable IOD in switch when EVAs are connected.
5 REPLIES 5
IBaltay
Honored Contributor

Re: EVA in order delivery

Hi,
IOD=on, DLS=off,APTPOLICY=1 is mandatory especially in the EVA CA environment, because EVA works only with the port base routing and needs the frames to come in order...
the pain is one part of the reality
Víctor Cespón
Honored Contributor
Sukhvinder Saraf
Occasional Contributor

Re: EVA in order delivery

I am aware of this link, but it doesnt say why its needed.
Uwe Zessin
Honored Contributor

Re: EVA in order delivery

Because the EVA cannot re-order FC frames. Historically there was only one path in a fabric for a source/destination port combination at a time, so there was no need to deal with that.
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Sukhvinder Saraf
Occasional Contributor

Re: EVA in order delivery

Hi Uwe,

Is it same for all storages like EMC clariion & IBM DS8000 or only EVA