Debug the virtual TTY from the master service processor.
You can gather additional debug information from a failing system by using the debug virtual server (DVS). The DVS enables communication with the server firmware and partition firmware. DVS allows a maximum of eight open connections. External interfaces such as the ASMI and service processor remote application can communicate with the server firmware and partition firmware through DVS. This communication is bidirectional. External interfaces can send a message to the server firmware and partition firmware through DVS.
DVS uses the partition ID and session ID to distinguish between the server firmware and partition firmware. The range for both the partition ID and session ID is 0 to 255. Clients, such as the ASMI, interact with DVS using a TCP/IP socket. Port 30002 on the service processor is used for this communication.
The partition ID and the session ID parameters must be specified to start communicating. After specifying both parameters, a telnet session must be opened to send messages. The telnet session must be started and messages must be sent within the time-out period of 15 minutes. If both actions are not taken within the time-out period, the connection is closed.
To perform this operation, your authority level must be authorized service provider.
To debug the virtual TTY, do the following: