The server contains an automatic diagnosis system which identifies, categorizes, and prioritizes problems and then presents the information to the user through the console.
To activate the diagnosis system, use the trouble command.
This command contains 'groups' which refer to parts of the server and its storage. For example, there is a Network group and a Storage group. Trouble also contains 'reporters'. These are individual programs that investigate issues within the groups.
For example, the Network group contains the following reporters:
CLUSTER-2:$ trouble --list-reporters network Group Reporter Pri Brd Subject of warnings ----- -------- --- --- ------------------- network aggregation 170 MMB Aggregation status network network-statistics 180 MMB Network interface statistics network nim-vlsi 190 MMB NIM VLSIsettings network network-interfaces 200 MMBNetwork interfaces link status network remote-nfs 270 MMB RemoteNFS network nisclient 280 MMB Nisclient status network wins 290 MMB UnreachableWINS servers network ip-eng-adv 300 MMB ipeng/ipadv status network mac-cluster 340 MMB MAC_10status network mac-network 340 MMB MAC_1status network external-migration-protocol-errors 350 MMB External migration protocol errors network packet-capture 380 MMB Checks that packet-capture is not running network remote-http 400 MMB Remote HTTP
There are two types of reporters:
- Fault reporters - these detect issues that can cause degradation of service.
- Performance reporters - these detect performance values which are out-of-range (unexpectedly high or low).
This command operates over all cluster nodes unless configured otherwise.
Example of common command usage
The following command reports all issues with the network group.
trouble network
The report appears as shown in the example below:
