The disk created on the MD can only belong to one contoller, meaning it can't be seen by servers connected to contoller 2. To direct attach 2 servers for cluster use, you need four nic connections. Server 1 connects to cntr 1 port 0 and cntr 2 port 1, Server 2 connects to cntr 1 port 1 and cntr 2 port 0. This would give you multi path availability and each server would see disks on iether controller. Cabling guide and considerations here  <ADMIN NOTE: Broken link has been removed from this post by Dell>
Hello, I need to setup Oracle RAC 11g ASM on Dell MD3000i storage.  I have MD3000i storage and two PowerEdge6850 servers.  I connected the storage to servers directly without any switch. I plugged a cable from controller 1 to server 1 for manage. Then I plugged a cable from iscsi port  1(controller 1) to  server 1 and a cable from iscsi port 2 (controller 1) to server 2. I'm using Oracle Enterprise Linux 5 x64 and asmLib package. But I can't create correct shared storage. So clusterware installation always fail.(I think the problem is, for example, if I create a folder from the first node I can't see folder from the second node which is created from the first node) Could you please me to accomplish this task. Thank you.
Oracle RAC on MD3000i