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

Glossary
ServerNet Cluster 6780 Planning and Installation Guide—527301-005
Glossary-2
boot
enclosure, one I/O enclosure, or one processor enclosure with one or more I/O
enclosures attached.
boot. A synonym for load. Load is the preferred term used in this and other NonStop
S-series system manuals. See load.
cable channel. A cable management conduit that protects the cables that run between two
system enclosures in a double-high stack. Each system enclosure has two cable
channels running vertically on its service side: one on the left-hand side of the
enclosure, and one on the right-hand side of the enclosure.
cable guidepost. A cable management rod that routes cables exiting the upper enclosure
in a double-high stack to prevent the cables from hanging down in front of the
customer-replaceable units (CRUs) in the base enclosure. A cable guidepost extends
from the base of each cable channel.
cable support. A piece of cable management hardware that secures system cables. The
cable support attaches to the service side of a system enclosure near the bottom of the
enclosure. Cable ties for securing system cables are threaded through the cable
support. The cable support also contains the group and module ID labels and the rear
group service light-emitting diode (LED).
card cage. A structure made up of slots that hold components such as
customer-replaceable units (CRUs) and ServerNet adapters.
carrier. (1) A sheet-metal structure that allows a single-high ServerNet adapter to be
installed in a ServerNet adapter slot designed for a double-high ServerNet adapter.
(2) An electrical signal that carries data.
CE. Customer engineer. See service provider.
central processing unit (CPU). Historically, the main data processing unit of a computer. A
NonStop system has multiple cooperating processors rather than a single CPU. See
also processor
.
channel. An information route for data transmission. See also ServerNet link
.
checksum. A generic term, meaning to “add” together (although the definition of add need
not be a normal arithmetic add) all of the data to produce a check word. See also cyclic
redundancy check (CRC).
CIIN. A command file in the SYSnn subvolume that is read and executed by the startup
TACL process after system load if the CIIN file is specified in the CONFTEXT file.
client. A software process, hardware device, or combination of the two that requests
services from a server. Often, the client is a process residing on a programmable
workstation and is the part of an application that provides the user interface. The
workstation client might also perform other portions of the application logic.