02-29-2012 01:39 PM
Does anyone know if you have a vmware host with an HBA, and it needs to connect to multiple different storage systems on the same switch, is it better to create multiple zones and do a 1:1. Or just create one zone for that HBA and add all the different types of storage systems into that zone?
Is there a best practice, any reason to do one over the other?
02-29-2012 03:16 PM
Basic rule is one initiator zoning.
Doing 1:1 you can in essence never do bad. (outside zoning DB scaling in really big ENVs)
You definitely do NOT want to have two storage boxes zoned together via host zoning.
More so if they are of the same type.
Choose anything between:
1 initiator WWPN - 1 target WWPN
1 initiator WWPN - 1 storage box
And you should be good.
02-29-2012 03:57 PM
Thanks that is what I thought but wanted to double check.
Is it ok to have say 4 different zones for the same HBA of a host like this:
So it the same HBA card in each of those zones but will still be able to access all 4 different storage systems with luns on each one? I am not sure what th performance implications can be.
In the past I have only worked with one large enterprise storage system, and only need one zone per HBA, but here they have many smaller entry level storage.
02-29-2012 04:15 PM
Yes that is ok.
Performance implications are none whatsoever.
Unless you have really big environment (1.000s of zones) it does not matter if you have 2 WWPN/zone or 8 WWPN/zone.
Important for performance is to properly design your physical infrastructure like ISL's etc.
In zoning, maybe, not overdo on multi-pathing (but that heavily depends on host OS and storage type).