Diagram of board fiber connections of subracks with typical configurations at a back-to-back OTM node

The fiber connections for SFIU boards vary depending on their positions on the NEs and networks.

One multiplexed optical signal received at the IN port is sent to the EDFA optical module. The EDFA optical module amplifies the optical power of the signal and locks the gain of the signal. The signal is then transmitted to the DCM board through the TDC port for dispersion compensation. Then, the signal is sent back through the RDC port. The amplified multiplexed signals are output through the OUT port. The multiplexed signal can also be input through the VI port and output through the VO port after the optical power is adjusted. Then, the IN port receives the multiplexed signal sent from the VO port.

Use PuTTY to log in to the active FSM node. Ensure that the FSM floating IP address and username dsware are used to establish the connection. Run the following command to disable logout on timeout: TMOUT=0 Back up data for the FSM node to the local server. Run the following command to switch to the directory containing the FSM command configuration tool: cd /opt/dsware/client/bin/ Run the following commands to issue the command for manually backing up FSM data on the local server: NOTE: Because of system security hardening, you are required to enter the username and password for authentication after running the dswareTool command of FusionStorage. The default username to be authenticated is cmdadmin, and its default password is cmdHuawei@123. The system supports authentication using environment variables so that you do not need to repeatedly enter the username and password for authentication after running the dswareTool command each time. For details about how to import environment variables, see Authentication Using Environment Variables. sh dswareTool.sh --op executeBackupCmd If the command output contains "Operation finish successfully", the command is issued successfully. ... Operation finish successfully. Result Code:0 ... Check the backup files stored on the local FSM server. Run the following command and enter the password of user root to switch to user root: su - root Run the following command to disable logout on timeout: TMOUT=0 About 5 minutes after the manual backup command is issued, run the following command to switch to the directory containing the manual backup files: cd /opt/dsware/manager/backup/manual/ Run the following command to view the files stored in the directory: ll Check whether the directory contains the latest backup file. If yes, go to Step 10. If no, contact technical support. Determine whether to back up data to a third-party backup server. Determine whether a third-party backup server is configured. If yes, go to Step 11. If no, no further action is required. Check the backup files stored on the third-party backup server. Determine the type of the OS used by the third-party backup server. If the server runs Windows OS, go to Step 12. If the server runs Linux OS, go to Step 15. About 10 minutes after the local backup is successful, log in to the third-party backup server over a remote desktop connection. For details, see Logging In to a VM in Remote Mode. Switch to the directory containing backup files. Directory containing manual backup files: Directory configured on the FTPS server\CloudComputing\DswareMgr_FSM floating IP address\manual Check the files in the directory, then perform Step 19. About 10 minutes after the local backup is successful, use PuTTY to log in to the third-party backup server. Ensure that the IP address of the third-party backup server and username root are used to establish the connection. Run the following command to disable logout on timeout: TMOUT=0 Run the following command to switch to the directory containing backup files: cd Directory configured on the FTPS server/CloudComputing/DswareMgr_FSM floating IP address/manual Run the following command to view the files stored in the directory: ll Check whether the directory contains the latest backup file. If yes, no further action is required. If no, contact technical support.

Huawei Storage Networking Assistant is a webpage-based tool, providing networking diagrams of different CONFIGUREs. You only enter the network CONFIGURE information based on your requirements to QUICK obtain the desired networking diagram and connect cables without the need to remember complicated networking plans and rules. Click Huawei Storage Networking Assistant to obtain the tool.

Indication of back-to-back cascading is as follows: Back-to-back cascading is a way of using two endpoints to connect to two videoconferencing systems. For example, there are two endpoints A and B. The output port of endpoint A is connected to the input port of endpoint B, providing video signals of videoconferencing system A to endpoint B. The output port of endpoint B is connected to the input port of endpoint A, providing video signals of videoconferencing system B to endpoint A. The distance between endpoints A and B cannot exceed the length of the video cable connecting the endpoints.