HPE EVA Storage

Added second EVA to environment

 
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Berd
Trusted Contributor

Added second EVA to environment

Hello colleagues,

I have just added a second EVA, a EVA8400, to my environment which already had a EVA8100.

Both are managed by the same CommandView server. My question is, am I ok to create Hosts on the new EVA which already exist on the current EVA. So having them present on both and storage presented from both. I guess this is not an issue, but thought I'd check.

Regards,
Berd
5 REPLIES 5
Torsten.
Acclaimed Contributor
Solution

Re: Added second EVA to environment

No, this is really no problem.
All access is WWN based, so each array and LUN has a unique WWN anyway.

Hope this helps!
Regards
Torsten.

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hvhari
Esteemed Contributor

Re: Added second EVA to environment

It is required to have hosts defined for new EVA, if you need to present any LUN to the hosts. There is absolutely no issue in a host having access to different storage systems.

Regards,
Hari

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Berd
Trusted Contributor

Re: Added second EVA to environment

Thanks for your responses Torsten / Hari. Will I need to be concerned about LUN id's ? Will I need to assign these manually so there are no duplicates across the 2 EVA's ?

Berd
Uwe Zessin
Honored Contributor

Re: Added second EVA to environment

If you are talking about "LUN addresses" (1..255), then technically, NO. Each EVA host port is an individual SCSI target for each host with an individual LUN address space.

However, if you might want to introduce Continuous EVA (remote replicate) at one later point, then it makes sense to use uniqe LUN addresses.

And it won't hurt if you do it anyway ;-)
.
Berd
Trusted Contributor

Re: Added second EVA to environment

Thanks Uwe