ServerNet Cluster 6780 Planning and Installation Guide (G06.28+, H06.05+)
Table Of Contents
- What’s New in This Guide
 - About This Guide
 - 1 ServerNet Cluster Overview
 - 2 ServerNet Cluster Hardware Description
 - 3 Planning for Installation and Migration
- Planning Checklist
 - Software Installation Planning
 - Hardware Installation and Migration Planning
- Task 1: Plan for the ServerNet Nodes
 - Task 2: Plan for the System Consoles
 - Task 3: Plan for the 6780 Switches
 - Task 4: Plan for the Racks
 - Task 5: Plan for the Power Requirements
 - Task 6: Plan the Location of the Hardware
 - Task 7: Plan for the Fiber-Optic Cables
 - Task 8: Plan to Migrate the ServerNet Nodes From 6770 Switches
 - Task 9: Plan the ServerNet Node Numbers
 - Task 10: Plan the Expand-Over-ServerNet Lines
 
 - Migration Examples
 
 - 4 Preparing a System for Installation or Migration
 - 5 Installing 6780 Switches
 - 6 Connecting the Fiber-Optic Cables
- Summary of Tasks
 - Handling the Fiber-Optic Cables
 - Connecting the Layer Cables
 - Connecting the Zone Cables
 - Connecting the Cables Between a Node and a 6780 Switch
- Alerts
 - Task 1: Double-Check the Required Software and Hardware
 - Task 2: Label the Cables That Connect to the Node
 - Task 3: Inspect the Cables
 - Task 4: Connect a Cable to the Switch
 - Task 5: Connect a Cable to the Node
 - Task 6: Check the Link-Alive LEDs
 - Task 7: Check Operations
 - Task 8: Finish Connecting the Fiber-Optic Cables
 
 - Routing the Fiber-Optic Cables
 
 - 7 Configuring Expand-Over-ServerNet Lines
- Using Automatic Line-Handler Generation
 - Using the OSM Service Connection
 - Using SCF
- Rule 1: Configure the Primary and Backup Line-Handler Processes in Different Processor Enclosures
 - Rule 2: For Nodes With 6 or More Processors, Avoid Configuring the Line-Handler Processes in Proc...
 - Rule 3: For Nodes With More Than 10 Processors, Avoid Configuring the Line-Handler Processes in P...
 - Expand-Over-ServerNet Line-Handler Process Example
 
 
 - 8 Checking Operations
- Checking the Operation of the ServerNet Cluster
 - Checking the Operation of Each Switch
- Checking the Power to Each Switch
 - Checking the Switch Components
 - Checking the Numeric Selector Setting
 - Checking the Globally Unique ID (GUID)
 - Checking for a Mixed Globally Unique ID (GUID)
 - Checking the Fiber-Optic Cable Connections to the Switch Port
 - Checking the Switch Configuration, Firmware, and FPGA Images
 
 - Checking the Operation of Each Node
- Checking the Service Processor (SP) Firmware
 - Checking That Automatic Line-Handler Generation Is Enabled
 - Checking the ServerNet Node Numbers
 - Checking MSGMON, SANMAN, and SNETMON
 - Checking for Alarms on Each Node
 - Checking the ServerNet Cluster Subsystem
 - Checking That the ServerNet Node Numbers Are Consistent
 - Checking Communications Between a Local Node and a Switch
 - Checking Communications With a Remote Node
 - Checking the Internal ServerNet X and Y Fabrics
 
 - Checking the Operation of Expand Processes and Lines
 
 - 9 Changing a ServerNet Cluster
- OSM Actions
 - Removing a Node From a ServerNet Cluster
 - Removing Switches From a ServerNet Cluster
 - Adding a Node to a ServerNet Cluster
 - Adding a Switch Layer to a ServerNet Cluster
 - Adding a Switch Zone to a ServerNet Cluster
- Task 1: Prepare to Add the Switches
 - Task 2: Connect the Cables Between Layers
 - Task 3: Check Operations
 - Task 4: Disconnect the Cables Between Zones
 - Task 5: Connect the Cables Between Zones
 - Task 6: Check Operations
 - Task 7: Connect the Additional Nodes
 - Task 8: Check Operations
 - Task 9: Repeat Tasks 2 Through 8 for the Other Fabric
 - Task 10: Reenable OSM Alarms
 
 - Moving a Node
 - Changing the Hardware in a Node Connected to a ServerNet Cluster
 
 - 10 Troubleshooting
- Symptoms
 - Recovery Operations
- Enabling Automatic Expand-Over-ServerNet Line-Handler Generation
 - Reseating a Fiber-Optic Cable
 - Correcting a Mixed Globally Unique ID (GUID)
 - Restoring Connectivity to a Node
 - Switching the SANMAN Primary and Backup Processes
 - Switching the SNETMON Primary and Backup Processes
 - Configuring the Expand-Over-ServerNet Line-Handler Processes and Lines
 - Starting Required Processes and Subsystems
 
 - Fallback Procedures
 
 - 11 Starting and Stopping ServerNet Cluster Processes and Subsystems
 - A Part Numbers
 - B Blank Planning Forms
 - C ESD Guidelines
 - D Specifications
 - E Configuring MSGMON, SANMAN, and SNETMON
 - F Updating the 6780 Switch Logic Board Firmware, Configuration, and FPGA Images
 - G Using the Long-Distance Option
 - Safety and Compliance
 - Glossary
 - Index
 

ServerNet Cluster Hardware Description
ServerNet Cluster 6780 Planning and Installation Guide—527301-005
2-21
NonStop S-Series Servers
Node-Numbering Agent (NNA) Field-Programmable Gate 
Array (FPGA) Plug-in Card (PIC) 
Port 6 of the MSEB in slots 51 and 52 in the group 01 system enclosure must contain a 
single-mode, fiber-optic NNA FPGA PIC.  An NNA FPGA can not be installed in other 
ports of the MSEBs or in any other system enclosures. See Figure 2-6, NNA FPGA 
PIC Installed in Port 6, on page 2-21.  
The node-numbering agent (NNA) field-programmable gate array (FPGA): 
•
Provides the fiber-optic connections between a NonStop S-series server and a 
cluster switch 
•
Provides the node-numbering function for the cluster
•
Converts the source ServerNet ID of packets routed to the external ServerNet 
fabrics so that they can be directed to another node 
•
Translates the destination ID of ServerNet packets coming from the external 
ServerNet fabrics 
The NNA FPGA contains an optical receiver for subscriber connectors (SC) as shown 
in Figure 2-7 on page 2-22. 
Figure 2-6. NNA FPGA PIC Installed in Port 6
vst004.vsd
MSEB
6
5
4
9
10
Port 6 Containing Single-Mode
Fiber-Optic Plug-In Card (PIC)
With Node-Numbering Agent
(NNA FPGA)










