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MSA change host-port-mode

 
kharitonov
Occasional Visitor

MSA change host-port-mode

Hello,

could you help me with following question: our MSA 2040 (GL220P009) works with host-port-mode FC (all 4 ports are FC) and we have host connected to 1st interface. We need to connect iSCSI host to MSA so we plan to change host-port-mode to FC-and-iSCSI using "set host-port-mode FC-and-iSCSI" command. As for documentation 1st port will remain FC after this command but the question is - if other configurations (volume mappings and so on) remain? Will we need any reconfiguration after controllers' reboot to FC-and-iSCSI host-port-mode? What other problems with existing mappings, hosts are possible?

Thanks in advance for information and help.

1 REPLY 1

Re: MSA change host-port-mode

For both controller modules, all ports can be set to FC, all ports can be set to iSCSI, or the first two ports in each
controller module can be set to FC and the second two ports can be set to iSCSI.
set host-port-mode command will immediately change the host port configuration, stop I/O, restart both controllers, and log event 236. After the controllers have restarted, you can use the set host-parameters command to configure the individual ports.

Regarding mappings, you need to unmap all your existing volume mappings before performing Host port mode change activity. You shouldn't have same volume presented through FC and iSCSI both protocols. After host port configuration completed then you can represent volumes again with designated ports either FC or iSCSI but not combination of both for same volume.