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-11
GCSC
GCSC. See Global Customer Support Center (GCSC).
generic process. A process created and managed by the Kernel subsystem. Also known
as a system-managed process. A common characteristic of a generic process is
persistence. See also persistence.
gigabyte (GB). A unit of measurement equal to 1,073,741,824 bytes (1024 megabytes).
See also kilobyte (KB), megabyte (MB), and terabyte (TB).
Global Customer Support Center (GCSC). A support organization that provides telephone
and remote diagnostic support for HP customers. The GCSCs are located all over the
world.
globally unique ID (GUID). A unique, read-only number stored in nonvolatile memory
(SEEPROM) on a cluster switch at the time of manufacture. This number can be used
programmatically to identify the switch.
graphical user interface (GUI). A user interface that offers point-and-click access to
program functions.
group. (1) Part of the group, module, slot naming convention for uniquely identifying the
logical location of a component within a system. A group is a subset of a system and
contains one or more modules. A group does not necessarily correspond to a single
physical object, such as an enclosure. For example, an HP NonStop™ S-series
processor enclosure typically includes only one group number, but a modular cabinet
can contain several enclosures that each might belong to different groups. See also
module. (2) In the Open System Services (OSS) environment, a set of user IDs with
the same group ID.
GUI. See graphical user interface (GUI).
GUID. See globally unique ID (GUID).
guided procedure. An OSM or TSM software tool that assists you in performing complex
configuration or replacement tasks on a NonStop server. You can access the guided
procedures from the Start menu on your system console. Examples include Replace
SEB or MSEB, Configure ServerNet Node, and Replace IOMF.
hard reset. On a cluster switch, an action that reinitializes the router-2 ASIC within the
switch, disrupting the routing of ServerNet messages through the switch for several
minutes. When the hard reset is finished, the paths are restored automatically.
hop count. The number of routers that form a route between a ServerNet source and
ServerNet destination. Hop count is used to determine the best route. If two alternate
routes have the same time factor (TF), the path with the lower hop count is the better
route.
HP NonStop Cluster Switch (model 6770). The cluster switch used with star, split-star,
and tri-star topologies. The 6770 switch consists of a ServerNet II Switch, an