Question
After a restricted command (change port eth_net_segment switch=on in the developer view) is executed to cancel the restrictions on the IP addresses of management network ports and service network ports, the IP addresses of a management network port and service network port can be configured on the same network segment.
What is the impact on the storage system and how can I resolve problems if they occur?
Answer
Impact on the storage system:
After the IP addresses of the management network port and service network port are configured on the same network segment, the SNMP, email, log dump, FTP, AD, LDAP, NIS, and DNS provided by the storage system may be unavailable when the management network port's status is link down or the management chip is reset.
Recommended actions:
1. Check whether the cable of the management network port is properly connected and whether the management network is working properly to exclude the scenario where the management network port fails to send data due to the management network port's fault.
2. Log in to the primary controller of the storage system and
run the change user_mode current_mode user_mode=developer command on the CLI to go to the developer view.
3. Run the minisystem command to go to the minisystem mode.
4. Run the route command to check the route information. Check whether the route of the management network port is in front of that of the service network port (the results are in a top-down sequence).
If the route of the management network port is left behind, go to step 5.
The management network ports' names of 5300 V3 and 5500 V3 are eth2 as well as those of 5600 V3, 5800 V3, and 6800 V3 are eth-b1 or eth-b3.
For example, the following shows the query result after the OceanStor 5800 V3 encounters a problem.
5. Run the command to delete the route that corresponds to the IP address of the management network port and add the route that is deleted to the management network port again.
Command used to delete the route: route del –net XXXX netmask XXXX ethXX
Command used to add the route: route add –net XXXX netmask XXXX ethXX
6. Go to step 4 and check whether the route of the management network is in front of that of the service network port.
7. If the problem cannot be solved after the preceding steps are performed, contact Huawei technical support.
