NonStop S-Series Operations Guide (G06.29+)

HP NonStop S-Series Operations Guide—522459-009
12-1
12
ServerNet Fabrics: Monitoring and
Recovery
When to Use This Section on page 12-1
Monitoring the Status of the ServerNet Fabrics on page 12-2
Monitoring the ServerNet Fabrics Using OSM or TSM on page 12-2
Monitoring the ServerNet Fabrics Using SCF on page 12-3
Identifying ServerNet Fabric Problems on page 12-5
Recovery Operations for the ServerNet Fabrics on page 12-6
Recovery Operations for a Down Disk Due to a Fabric Failure on page 12-6
Recovery Operations for a Down Path Between Processors on page 12-6
Recovery Operations for a Down Processor on page 12-6
Recovery Operations for a File-System Error on page 12-6
Related Reading on page 12-6
When to Use This Section
The ServerNet fabrics provide the communication paths used for interprocessor
messages, for communication between processors and I/O devices, and (in the case of
ServerNet clusters) for communication between systems. The ServerNet fabrics
consist of two entirely separate communication paths—the X fabric and the Y fabric.
Use this section to learn more about monitoring and performing recovery operations for
the internal and external ServerNet fabrics. Monitoring and performing recovery
operations for communication between processors and I/O devices other than IOMF
CRUs are not discussed in this guide.
Note. If the system is a member of a ServerNet cluster, ServerNet connections to other
members are accomplished by extending the ServerNet fabrics outside the system. Such
external connections make up the external ServerNet fabrics. For more information about
monitoring the external ServerNet fabrics, see the ServerNet Cluster Manual (for star
topologies with 6770 switches), or the ServerNet Cluster 6780 Operations Guide (for layered
topology with 6780 switches).