After you configure the data transfer speed of FICON® ports, use the following procedure to bring the paths connected to the FICON® ports online.
The data transfer speed of the FICON® port must already be set.
- On the host connected to the FICON® port with the data transfer speed configured, execute channel path online.
If multiple hosts are connected through a switch, execute channel path online on any host (refer to the host manual for instructions).
- Confirm that the channel path online has completed.
- On the host, verify that the path between the host and the storage system is online.
- If the path is online, the task is complete.
- If the port’s data transfer speed is set to Auto, the speed will be finalized during the process of bringing the path online. If you want to confirm this speed, proceed to the next step.
- If the path does not come online, see Troubleshooting FICON and take appropriate action.
- Use CCI to check the detailed information of the port.
Example: Check detailed information for port CL3-A:
# raidcom get port -port CL3-A -key opt
- If the data transfer speed applied is slower than the maximum configurable speed, perform the following operations:
- If the FICON® port is directly connected to the host HBA:
Execute channel path offline (Note 2) on the host, then execute channel path online.
- If the FICON® port is connected to a switch:
Execute channel path offline on the host. Then set the switch port to disable (link-down), followed by enable (link-up). Refer to the switch manual for details. Alternatively, ask the service representative to unplug the cable (link-down) and reinsert it (link-up). Finally, execute channel path online.
- If the FICON® port is directly connected to the host HBA: