Fabric OS Message Reference v7.0.0 (53-1002149-01, April 2011)

18 Fabric OS Message Reference
53-1002149-01
System module descriptions
1
MCAST_SS The Multicast Sub-System messages indicate any problems associated with the Layer 2 and Layer 3
Multicast platform support, including allocation of global platform resources such as MGIDs,
hardware acceleration resources for Multicast, and route programming into the hardware (Layer 2
EXM for IGMP Snooping for Fabric OS v7.0.0).
MFIC MS-FICON messages relate to Fibre Connection (FICON) installations. Fibre Connection control unit
port (FICON-CUP) messages are displayed under the FICU module.
MPTH Multicast path uses the shortest path first (SPF) algorithm to dynamically compute a broadcast tree.
MQ Message queues are used for interprocess communication. Message queues allow many messages,
each of variable length, to be queued. Any process or interrupt service routine (ISR) can write
messages to a message queue. Any process can read messages from a message queue.
MS The Management Service enables the user to obtain information about the Fibre Channel fabric
topology and attributes by providing a single management access point. MS provides for both
monitoring and control of the following areas:
• Fabric Configuration Server: Provides for the configuration management of the fabric.
• Unzoned Name Server: Provides access to Name Server information that is not subject to zone
constraints.
• Fabric Zone Server: Provides access to and control of zone information.
MSTP MSTP error messages indicate problems with Multiple Spanning Tree Protocol modules of the Fabric
OS.
NBFS NBFSM is a part of the fabric shortest path first (FSPF) protocol that handles a neighboring or
adjacent switch’s finite state machine (FSM).
Input to the FSM changes the local switch from one state to another, based on specific events. For
example, when two switches are connected to each other using an interswitch link (ISL) cable, they
are in the Init state. After both switches receive HELLO messages, they move to the Database
Exchange state, and so on.
NBFSM states are Down (0), Init (1), Database Exchange (2), Database Acknowledge Wait (3),
Database Wait (4), and Full (5).
NS Indicates problems with the simple Name Server module.
NSM NSM error messages indicate problems with the Interface Management and VLAN Management
module of the Fabric OS.
ONM ONM error messages indicate problems with the Operation, Administration and Maintenance module
of the Fabric OS.
PDM Parity data manager (PDM) is a user-space daemon responsible for the replication of persistent
configuration files from the primary partition to the secondary partition and from the active CP blade
to the standby CP blade.
PDTR PDTR messages indicate panic dump trace files have been created.
PLAT PLAT messages indicate hardware problems.
PMGR A group of messages relating to logical switch creation, deletion, and configuration.
PORT PORT error messages refer to the front-end user ports on the switch. Front-end user ports are directly
accessible by users to connect end devices or connect to other switches.
PS The performance server daemon measures the amount of traffic between endpoints or traffic with
particular frame formats, such as SCSI frames, IP frames, and customer-defined frames.
PSWP The portswap feature and associated commands generate these error messages.
RAS Informational messages when first failure data capture (FFDC) events are logged to the FFDC log and
size/roll over warning.
TABLE 6 System module descriptions (Continued)
System
module
Description