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Check the FC adapter port speed

Contributors netapp-aherbin
PDFs

The adapter target port speed should match the speed of the device to which it connects, to optimize performance. If the port is set to autonegotiation, it can take longer to reconnect after a takeover and giveback or other interruption.

What you'll need

All LIFs that use this adapter as their home port must be offline.

Steps

  1. Take the adapter offline:

    network fcp adapter modify -node nodename -adapter adapter -state down

  2. Check the maximum speed of the port adapter:

    fcp adapter show -instance

  3. Change the port speed, if necessary:

    network fcp adapter modify -node nodename -adapter adapter -speed {1|2|4|8|10|16|auto}

  4. Bring the adapter online:

    network fcp adapter modify -node nodename -adapter adapter -state up

  5. Bring all the LIFs on the adapter online:

    network interface modify -vserver * -lif * { -home-node node1 -home-port e0c } -status-admin up

Example

The following example changes the port speed of adapter 0d on node1 to 2 Gbps:

cluster1::> network fcp adapter modify -node node1 -adapter 0d -speed 2