A
5 – Software Installation Customer Acceptance Utility
Use a PCIe MaxReadRequest size of at least 512 bytes with the QLE7240 and QLE7280. QLE7240 and QLE7280 adapters can support sizes from 128 bytes to 4096 byte in powers of two. This value is typically set by the BIOS.
Use the largest available PCIe MaxPayload size with the QLE7240 and QLE7280. The QLE7240 and QLE7280 adapters can support 128, 256, or 512 bytes. This value is typically set by the BIOS as the minimum value supported both by the PCIe card and the PCIe root complex.
Adjust the MTRR setting. Check that the BIOS setting for MTRR is Discrete. For more information, see “MTRR Mapping and Write Combining” on page
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.
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.
3.Gathers and analyzes system configuration from the nodes.
4.Gathers and analyzes RPMs installed on the nodes.
5.Verifies QLogic hardware and software status and configuration. Includes tests for link speed, PIO bandwidth (incorrect MTRR settings), and MTU size.
