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Hi all, maybe some of you would have some experience with the following. I have several Cisco's MDS9140 located in different rooms and locations (long distances). There are several dark fibre and DWDM links between the switches. There are also several Clariion (CX models) connected to the first 8 ports of several switches. Actually, I would need to connect a new CX4-480 to two of the switches in the same datacenter. However, I have read that the MDS9140 has the first 8 ports for "target-optimized" connectivity, while the other ports are "host-orpimized" ports. However, when looking the SAN from Cisco's GUI Fabric Manager/Device Manager, I can see that the ports 9-40 show up as "Host/Storage". What happens is that the 8 first ports of the switches I want to connect the nex CX4 to, are already full, so I don't have anymore free ports from 1-8. Can I connect the CX4 ports on other ports, on 9-40 ? Is there any minimum buffer credit requirement for storage ? I think that the ports 9-40 have a default of 16 buffer credits per port. Other Clariion's are already connected to some ports1-8, but I'm not sure this is mandatory. I think ports 1-8 are mostly used for long distance ISL's (TE ports).  Thank you for your comments/advice.  Jack
Which MDS 9140 ports are recommended to connect a Clariion CX4 ?