ServerNet Cluster Manual

Troubleshooting and Replacement Procedures
ServerNet Cluster Manual—520575-003
7-29
Checking the External ServerNet X and Y Fabrics
Checking the External ServerNet X and Y Fabrics
You must use the TSM Service Application to check the external ServerNet X and Y
fabrics. The guided procedure for troubleshooting a ServerNet fabric cannot
troubleshoot the link between an MSEB and a ServerNet II Switch. The guided
procedure can troubleshoot internal fabrics only. However, you can perform internal
and external loopback tests on an NNA PIC in an MSEB.
If no alarms are visible on the external fabrics but you still want to check the
connectivity between the local node and the cluster switch, you can use the Node
Connectivity ServerNet Path Test action. This action tests a path from the local
MSEB to the ServerNet II Switch component on one fabric. If problems are found, TSM
generates alarms based on the result. This action is provided for diagnostic purposes
only. It has no destructive effect.
Table 7-4 describes the scope of the Node Connectivity ServerNet Path Test action.
If an alarm is generated, the problem lies between the local node and the cluster
switch. The problem might be any of the following components:
•
The MSEB in slot 51 or 52 of the group 01 enclosure of the local system.
•
The PIC in port 6 of the MSEB in slot 51 or 52 of the group 01 enclosure of the
local system.
•
The cable from the PIC in port 6 of the MSEB in slot 51 or 52 of the group 01
enclosure to the ServerNet II Switch component of the cluster switch.
•
The ServerNet II Switch component of the cluster switch.
•
The PIC in the ServerNet II Switch to which the cable from the local system is
connected. Note that PICs installed in ServerNet II Switches are not currently
replaceable.
Table 7-4. Scope of Node Connectivity ServerNet Path Test
On This
Fabric The test checks from . . . To the . . .
X fabric Port 6 of the MSEB in slot 51 of group 01 X-fabric ServerNet II Switch
component, including the
status of the switch and the
switch port.
Y fabric Port 6 of the MSEB in slot 52 of group 01 Y-fabric ServerNet II Switch
component, including the
status of the switch and the
switch port.