The performance of ASs is low due to frequent linkup and linkdown between FC host ports.
In the ISM, choose Host Port Links Down can be found under Faults List., and the alarm message
This fault can be removed by upgrading to the latest version of storage software.
For the steps on upgrading the storage software, see the section "Upgrade" in the supplied configuration guide.
...... Sep 2 09:56:38 OceanStor kernel: Register good but link not good, reset it ......