Q-Logic OFED Customer Acceptance Utility, This will also show link speed, Hostname1 Hostname2

Installation Verification and Additional Settings Customer Acceptance Utility

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„Make sure that write combining is enabled. The x86 Page Attribute Table (PAT) mechanism that allocates write-combining (WC) mappings for the PIO buffers has been added and is now the default. If PAT is unavailable or PAT initialization fails for some reason, the code will generate a message in the log and fall back to the MTRR mechanism. See B Write Combining for more information.

„Check the PCIe bus width. If slots have a smaller electrical width than mechanical width, lower than expected performance may occur. Use this command to check PCIe Bus width:

$ ipath_control -iv

This will also show link speed.

Customer Acceptance Utility

ipath_checkout is a bash script that verifies that the installation is correct and that all the nodes of the network are functioning and mutually connected by the InfiniPath fabric. It must be run on a front end node, and requires specification of a nodefile. For example:

$ ipath checkout [options] nodefile

The nodefile lists the hostnames of the nodes of the cluster, one hostname per line. The format of nodefile is as follows:

hostname1

hostname2

...

NOTE:

The hostnames in the nodefile are Ethernet hostnames, not IPv4 addresses.

NOTE:

To create a nodefile you can use the ibhosts program. It will generate a list of available nodes that are already connected to the switch. The ibhosts program is described in more detail in the QLogic HCA and QLogic OFED Software Users Guide.

ipath_checkout performs the following seven tests on the cluster:

1.Executes the ping command to all nodes to verify that they all are reachable from the front end.

2.Executes the ssh command to each node to verify correct configuration of ssh.

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