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I'm not at all familiar with Dell server products. We recently purchased 2 r710s to use in split mode with a MD1220.

Each host runs its own H810.

Cabling: Server 1: From port 0 on the H810 to the EMM1 (Should see bays 0-11) Server 2: From port 0 on the H810 to the EMM0 (Should see bays 12-23)

I cannot see any drives in bays 0-11. I can see drives 12-23 though.

I have switched both H810s and can see drives 12-23 after the switch, but not drives 0-11.

The split mode switch is down and the top LED on the MD1220 is blue. I rebooted the MD1220 after switching it from unified to split mode. I've rebooted the servers several times as well.

This is also the second MD1220 that we have tested. Both units are doing the exact same thing. Only 1 side of the MD1220 works, period.

Can someone tell me what is happening here?