ServerNet Cluster 6780 Operations Guide (G06.24+, H06.03+)

ServerNet Cluster Software
ServerNet Cluster 6780 Operations Guide—525606-002
A-3
ServerNet Cluster Subsystem
The External System Area Network Manager is a process pair that runs in every
NonStop S-series server connected to a ServerNet cluster. SANMAN can be run in any
processor.
This list shows the details for the SANMAN process:
ServerNet Cluster Subsystem
The ServerNet cluster subsystem is the system configuration environment that enables
ServerNet communication between processors in different nodes of a ServerNet
cluster.
SNETMON
SNETMON is the Subsystem Programmatic Interface (SPI) server for ServerNet
cluster subsystem-management commands. SNETMON:
•
Supports the Expand-over-ServerNet line handlers using the Network Access
Method (NAM) protocol.
•
Manages the state of the ServerNet cluster subsystem.
ServerNet cluster subsystem state changes are logged to $ZLOG as event ZCOM-
EVT-SUMSTATE-CHG. The SNETMONs on each node have a peer-to-peer
relationship with each other. Each SNETMON maintains the state of objects
relevant to the local node and its connection to the ServerNet cluster. SNETMON
maintains state information about:
•
The ServerNet cluster subsystem on each member node.
•
Each individual ServerNet path from a processor on the local node to a
processor on a remote node.
•
The Expand-over-ServerNet line-handler processes. SNETMON recognizes
the identities (logical devices [LDEVs]) of the line handlers that bind to it and
their process state.
Abbreviation SANMAN
Description External system area network manager process
Subsystem Name SMN
Subsystem Acronym ZSMN
Subsystem Number 237
Recommended Generic Process
Name
$ZZKRN.#ZZSMN
Process Name or Process Pair
Name
$ZZSMN
Product Number T0502
Program File Name $SYSTEM.SYSnn.SANMAN