EVA Management Appliance - single or dual SAN connection?

[Ian Dennison_1]

Have reviewed the Command view 6.0 and 8.0 install pre-reqs and there is no mention of whether a single or dual SAN connection is recommended.

Does anyone know of a specific reason for dual connection? Share and Enjoy! Ian

[Jozef_Novak]

Hello Ian,

one reason for dual connection would be the benefit of still being able to manage the array in the event of a HBA / FC switch failure. In case you are using a normal server rather than SMA for EVA management, you may be running other applications than Command View itself on the machine and if it also uses diskspace from the EVA, the dual connection should be used because for HA purpose.

Regards,
J.

[Ian Dennison_1]

Jozef

I have a pair of EVA management appliances located across different geographical areas, so would fail over to the other MA in the event of a SAN connection failure.

But the point about fault tolerance is a valid one, thanks.

Ian

[IBaltay]

Hi,
the point is,
that EVA front ports are connected to both redundant fabrics, so if the SMA have only 1 HBA and EVA is still after "yours" fabric failure nicely accessible via the second fabric it becomes unmanagable from that SMA.

[Víctor Cespón]

Command View only talks to the master controller. Each controller is connected to two SAN switches. Connecting the management server to both switches too gives you an alternative path.

[Ian Dennison_1]

So no specific requirement but highly recommended. Thanks all. Ian