ServerNet Cluster 6780 Planning and Installation Guide (G06.24+, H06.03+)

Contents

ServerNet Cluster 6780 Planning and Installation Guide—527301-004

10. Troubleshooting

Adding a Switch Layer to a ServerNet Cluster 9-8 (continued)

Task 5: Resume Normal Operations 9-9

Adding a Switch Zone to a ServerNet Cluster 9-9

Task 1: Prepare to Add the Switches 9-9

Task 2: Connect the Cables Between Layers 9-10

Task 3: Check Operations 9-10

Task 4: Disconnect the Cables Between Zones 9-10

Task 5: Connect the Cables Between Zones 9-11

Task 6: Check Operations 9-12

Task 7: Connect the Additional Nodes 9-12

Task 8: Check Operations 9-12

Task 9: Repeat Tasks 2 Through 8 for the Other Fabric 9-12

Task 10: Reenable OSM Alarms 9-13

Moving a Node 9-13

Alerts 9-13

Moving the Cable Connected Between a Node and 6780 Switch 9-13

Changing the Hardware in a Node Connected to a ServerNet Cluster 9-14

Expanding or Reducing a NonStop S-Series Server 9-14

10. Troubleshooting

Symptoms 10-2

Green Power-On LED on a Switch Is Not Lit 10-2

Green Link-Alive LED Is Not Lit 10-2

Yellow Fault LED on a Switch Is Lit 10-3

Yellow Fault LED on a Switch Is Blinking 10-3

An OSM Alarm on the External Fabric Is Generated 10-3

ServerNet Node Numbers Are Not Consistent 10-4

ServerNet Remote Node Name Does Not Display 10-4

Recovery Operations 10-5

Enabling Automatic Expand-Over-ServerNet Line-Handler Generation 10-5

Reseating a Fiber-Optic Cable 10-5

Correcting a Mixed Globally Unique ID (GUID) 10-6

Restoring Connectivity to a Node 10-7

Switching the SANMAN Primary and Backup Processes 10-8

Switching the SNETMON Primary and Backup Processes 10-8

Configuring the Expand-Over-ServerNet Line-Handler Processes and Lines 10-9

Starting Required Processes and Subsystems 10-9