Installing Cluster Software
3-9
Compaq Confidential – Need to Know Required
Writer:
Rachel Williams
Project:
Compaq ProLiant Clusters for SCO UnixWare 7 U/300 Quick Install Guide for the Compaq ProLiant DL380
Comments:
Part Number:
221544-001
File Name:
d-ch3 Installing Software.doc
Last Saved On:
12/27/00 10:59 AM
Verifying Node-to-Node Communication
Node-to-node communication tests include a link test for the cables and a
loopback test for the adapters. Use the following steps to verify node-to-node
communication on a directly connected ServerNet I two-node cluster:
1.
Insert a ServerNet Utility Disk into node 1 and node 2, and then reboot
the nodes. Wait for the DOS prompt on the nodes.
2.
Type
spaf 1 2
at the DOS prompt on node 1, and then press
Enter
. A title
screen displays.
3.
Type
spaf 2 1
at the DOS prompt on node 2, and then press
Enter
. A title
screen displays.
4.
Press
Enter
on both nodes to start the link test for the cables. The
following messages display:
LINK X IS ALIVE
LINK Y IS ALIVE
You may see errors on the first node until the second node test starts. Be
sure that both nodes have started the test before checking for errors.
Persistent errors indicate a problem with the cabling between the nodes.
5.
Exit the text by pressing
Esc
if errors persist. Resolve the problem
before continuing.
6.
Press
Enter
on node 1 to begin the loopback test. Test message similar
to the following display:
spaf: path=0 Loopback=0 Option=1 11/29 14:08:20 600 pages
spaf: path=1 Loopback=0 Option=1 11/29 14:08:21 1200 pages
If a loopback error occurs, the test stops and reports the error. The error
indicates a problem with the adapter on node 1. Exit the loopback test
by pressing
Esc
, and resolve the problem before continuing.
7.
Press
Enter
on node 2 to begin the loopback test. Test message similar
to the following display:
spaf: path=0 Loopback=0 Option=1 11/29 14:08:25 600 pages
spaf: path=1 Loopback=0 Option=1 11/29 14:08:26 1200 pages
If a loopback error occurs, the test stops and reports the error. The error
indicates a problem with the adapter on node 2. Exit the loopback test by
pressing
Esc
, and resolve the problem before continuing.
8.
Press
Enter
on each node to exit the loopback test.
