Managing Fibre Channel Ports
Fibre Channel ports are used to connect a storage device with application servers, allowing them to communicate with each other over Fibre Channel links. You can view or modify parameters of Fibre Channel ports as required.
Viewing Fibre Channel Port Information
This section describes how to view information about a Fibre Channel port.
Procedure
- Choose System > Hardware > Devices.
- Click the controller enclosure where the desired Fibre Channel port resides.
- Click
to switch to the rear view.
- Click the desired Fibre Channel port.
Alternatively, you can choose Services > Network > FC Network.
- View the Fibre Channel port information on the page displayed on the right or in the table in the lower function pane.
Table 5-15 describes the parameters.
Table 5-15 Fibre Channel port informationParameter
Description
Name
Name of the Fibre Channel port.
Location
Location of the Fibre Channel port.
ID
ID of the Fibre Channel port.
Health Status
Health status of the Fibre Channel port.
Running Status
Running status of the Fibre Channel port.
WWPN
WWPN of the Fibre Channel Port.
Configured Rate (Gbit/s)
Configured rate of the Fibre Channel port.
Working Rate (Gbit/s)
Data transmission rate of the Fibre Channel port.
Max. Working Rate (Gbit/s)
Maximum data transmission rate of the Fibre Channel port.
Operation Mode
Operation mode of the Fibre Channel port.
Port State
Isolation status of the Fibre Channel port. Possible values are Enabled and Disabled. If Port State is Disabled, this port cannot be used.
Initiators
Number of initiators connected to the Fibre Channel port.
You can click the Initiators tab on the displayed page to view detailed initiator information.
Modifying a Fibre Channel Port
When the networking mode between a storage device and an application server changes, modify the parameters of the Fibre Channel port to ensure proper communication between them.
Context
Note the following when modifying the properties of a Fibre Channel port:
- When a storage system uses a Fibre Channel port to connect to an application server, ensure that the rate of the Fibre Channel port on the storage system is the same as that of the HBA port on the application server. Using different rates may cause communication failure between the storage system and application server.
- When two storage systems are interconnected by Fibre Channel ports, ensure that the rates of the Fibre Channel ports are the same on the two storage systems. Using different rates may cause communication failure.
- Do not modify the properties of a Fibre Channel port when services are running because modifying the properties will interrupt the communication on this port.
Procedure
- Choose System > Hardware > Devices.
- Click the controller enclosure where the desired Fibre Channel port resides.
- Click
to switch to the rear view.
- Click the desired Fibre Channel port.
The FC Port page is displayed.
- Modify the Fibre Channel port.
- Click Modify in the upper right corner.
Alternatively, you can choose Services > Network > FC Network and click the name of the desired FC port. In the upper right corner of the page that is displayed, click Modify.
- In Configured Rate (Gbit/s), select a data transmission rate for the Fibre Channel port.
- The Fibre Channel port must have the same rate and mode as the HBA port on the application server to prevent a communication failure.
- When two storage systems are interconnected by Fibre Channel ports, ensure that the rates and modes of the Fibre Channel ports are the same on the two storage systems. Using different rates or modes may cause communication failure.
The rate of a Fibre Channel port can be 2 Gbit/s, 4 Gbit/s, 8 Gbit/s, 16 Gbit/s, 32 Gbit/s, or self-adaptive. Select a correct value after obtaining necessary information.
- If the maximum rate of the port is 4 Gbit/s, you can set the value to 2 Gbit/s or 4 Gbit/s.
- If the maximum rate of the port is 8 Gbit/s, you can set the value to 2 Gbit/s, 4 Gbit/s, or 8 Gbit/s.
- If the maximum rate of the port is 16 Gbit/s, you can set the value to 4 Gbit/s, 8 Gbit/s, or 16 Gbit/s.
- If the maximum rate of the port is 32 Gbit/s, you can set the value to 8 Gbit/s, 16 Gbit/s, or 32 Gbit/s.
- If the value is set to Self-adaptive, the interconnected Fibre Channel ports negotiate the rate automatically. If the negotiated rates do not match, modify the rate manually.
- Click Modify in the upper right corner.
- Click OK.
Confirm your operation as prompted.
Viewing Bit Error Statistics
A port's bit error statistics reflect the data transmission efficiency of this port. A high bit error rate compromises the read and write performance of the application server using this port.
Procedure
- Choose System > Hardware > Devices.
- Click the controller enclosure where the desired Fibre Channel port resides.
- Click
to switch to the rear view.
- Click the desired FC port.
- In the lower function pane, click Bit Error Statistics.
The Bit Error Statistics page is displayed on the right.
Alternatively, you can choose Services > Network > FC Network and click Bit Error Statistics.
- Query the bit error statistics of the Fibre Channel ports.
- Select FC Port from the drop-down list in the upper-right corner.
- Query the bit error statistics in the port list.
You can click Clear to clear bit error statistics.