Expand Configuration and Management Manual (H06.21+, J06.10+)

Configuring Expand-Over-ServerNet Lines
Expand Configuration and Management Manual — 529522-013
12 - 3
Expand Manager Process ($ZEXP)
The components shown for this communications request and other components
necessary for Expand-over-ServerNet lines are described in subsequent sections.
Expand Manager Process ($ZEXP)
The Expand subsystem requires that the Expand manager process ($ZEXP) be
running during network operation. For more information on running this process, see
Task 2: Start the Expand Manager Process on page 1-3.
External System Area Network Manager (SANMAN)
The External System Area Network Manager (SANMAN) is a new process pair that
runs in every Integrity NonStop NS-series server connected to a ServerNet cluster.
SANMAN provides the services needed to manage the external ServerNet fabrics and
the system’s access to the fabrics. SANMAN:
•
Manages the external ServerNet fabrics.
•
Initializes, monitors, configures, and controls the NonStop Cluster Switches.
•
Communicates with other processes or objects that require information from or
about the external fabrics.
Message Monitor Process (MSGMON)
MSGMON is a new monitor process that resides in each processor of a server and
runs various functions required by the message system. MSGMON is a helper for the
ServerNet cluster subsystem. MSGMON handles communications between the
ServerNet monitor (SNETMON) and individual processors. MSGMON also logs events
from and generates events on behalf of the IPC subsystem.
MSGMON is a persistent process. Af
ter it is started, it terminates only in the event of
an internal failure or a termination message from the persistence monitor, $ZPM.
MSGMON is not a process pair.
Network Access Method (NAM)
NAM is a pair of message system dialects that allow use of another process, such as
X.25 or SNAX, as an Expand communications medium. NAM contains connection
establishment, data transfer, and disconnection phases. For more information, see
Expand-to-NAM Interface on page 17-49.
Note. The Integrity NonStop NS1000 server does not support ServerNet clusters.
Note. MSGMON is compatible only with G06.09 and later RVUs of the NonStop operating
sy
stem.