Administration and Diagnostics Utilities - Oracle Exadata Recipes: A Problem-Solution Approach

Databases Reference

In-Depth Information

How It Works

The /opt/oracle.SupportTools/ibdiagtools/verify-topology utility is used to validate the InfiniBand cabling

within your Exadata Database Machine. It uses ibnetdiscover , ibhosts , and ibswitches commands, located in

/usr/sbin , to conduct its tests.

7-15. Diagnosing Your InfiniBand Network

Problem

You wish to conduct a health check on your Exadata InfiniBand network to validate that the components are

functioning as expected.

Solution

Exadata provides several commands and utilities to validate the health of your Exadata InfiniBand network and

network switches, many of which can be executed from your compute servers or storage servers. With any of these

commands and utilities, you want to look for errors or warnings and resolve as appropriate.

First, log in to a compute server as root and run /usr/bin/ibdiagnet to determine if any

bad links, GUIDs, or illegal PM counters exist:

1.

[root@cm01dbm01 ibdiagtools]# ibdiagnet

Loading IBDIAGNET from: /usr/lib64/ibdiagnet1.2

-W- Topology file is not specified.

Reports regarding cluster links will use direct routes.

Loading IBDM from: /usr/lib64/ibdm1.2

-W- A few ports of local device are up.

Since port-num was not specified (−p option), port 1 of device 1 will be

used as the local port.

-I- Discovering ... 7 nodes (2 Switches & 5 CA-s) discovered.