Viewing error information on the master console

This topic describes how to view error information on the master console.

All of the SAN Volume Controllers, SAN File System metadata servers, fibre-channel switches, and storage, for example, DS4000, generate SNMP Traps as a result of events, such as errors and configuration changes. The errors are usually sent to IBM® Director and are listed in the Director Event Log. You can view all the events with their time stamps that help you to determine which event is most likely to cause a problem

Example: The loss of a fibre-channel path/link due to a cable or GBIC fault could result in a number of different events being logged to the Director Event Log from the devices at each end of the failing cable, such as a SAN Volume Controller, fibre-channel switch, or storage.

Some SAN component communication, such as fibre-channel path errors, can also be seen in the Tivoli® SAN Manager topology displays. The link and/or component are shown in red. If the problem is intermittent , you might see the component shown in yellow. For example, you might see the component shown in yellow if there is a loss of the link and now the link is restored.

Loss of just a component (shown in red) without the loss of the fibre-channel path (still showing in black) to it can indicate an IP connection problem between the master console and the component. Loss of the IP connection between the master console and a host can, if that host is the only Host with a Tivoli SAN Manager Agent installed, that has VDisks assigned from that SAN Volume Controller cluster, result in one or more SAN Volume Controllers also showing in red.

If you identify a fibre-channel path/link problem, the failure might be the fibre-channel cable, GBICs, SAN component, or host adapter at ends of the failing link.

To resolve the problem, you might need to refer to the service documentation for the link end device involved (SAN Volume Controller, fibre-channel switch, DS4000, host)

If you identify a particular SAN Component failure, refer to the service documentation for that component to resolve the problem. The master console C:\Documents directory contains copies of the various component documentation.

Parent topic: Troubleshooting the master console

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