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VNX CIFS two different speed interfaces

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Hi there,

Can you connect a VNX CIFS server to two different interfaces? These would be the 4 x 1GbE standard ports plus 2 x 10GbE (LC), the idea being that we can use the 10GbE ports to backup from.

Thanks,

Ed

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Re: VNX CIFS two different speed interfaces

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Just a quick note, in your first post you say "talk out of two different interfaces" and then talk about the physical interface properties.  Physical interface properties are actually devices, and then you'd build interfaces on top of that.  So your 4 x 1Gb would be some kind of portchanneled/FSN device, and your 2 x 10Gb would be another portchanneled/FSN device.

Then with this physical separation you would create an interface on each, assign an IP address, and then assign both interfaces to the CIFS server in the CIFS server properties. 

If you are connecting interfaces directly to the backup server (point to point) then you can use some kind of small private addressing like 192.168.50.0/28 or /29.  You can do the same thing via switching but need to check on VLAN, etc.

I agree with the rest of the posters that you want to use different subnets for each interface.  This is a historically known problem of trying to get a server to talk out of two interfaces on the same subnet with consistent behavior - not limited to VNX.

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Re: VNX CIFS two different speed interfaces

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Sure you can

If they are on the same subnet though you most likely wont have much control over which one a client uses

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Re: VNX CIFS two different speed interfaces

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What if we are connecting those interfaces directly to the backup server?

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Re: VNX CIFS two different speed interfaces

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does not matter, it's just an interface (IP) assigned to physical device.

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Re: VNX CIFS two different speed interfaces

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if you want to get this to work deterministically, connect it to a different subnet so when you backup, you reference the FS via the larger network interface.

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Re: VNX CIFS two different speed interfaces

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Just a quick note, in your first post you say "talk out of two different interfaces" and then talk about the physical interface properties.  Physical interface properties are actually devices, and then you'd build interfaces on top of that.  So your 4 x 1Gb would be some kind of portchanneled/FSN device, and your 2 x 10Gb would be another portchanneled/FSN device.

Then with this physical separation you would create an interface on each, assign an IP address, and then assign both interfaces to the CIFS server in the CIFS server properties. 

If you are connecting interfaces directly to the backup server (point to point) then you can use some kind of small private addressing like 192.168.50.0/28 or /29.  You can do the same thing via switching but need to check on VLAN, etc.

I agree with the rest of the posters that you want to use different subnets for each interface.  This is a historically known problem of trying to get a server to talk out of two interfaces on the same subnet with consistent behavior - not limited to VNX.

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Re: VNX CIFS two different speed interfaces

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unless this "private" network is layer 2 be prepared to have to set static routes.