HP StorageWorks Fabric OS 5.X Diagnostics and System Error Messages Reference Guide (AA-RVHZB-TE, September 2005)

92 Introduction to System Messages
KTRC
• Kernel RAS trace module.
LOG • RASLog subsystem.
LSDB • The link state database is a part of the FSPF protocol that maintains
records on the status of port links. This database is used to route frames.
MFIC • MS-FICON messages relate to FICON installations. 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.
NBFS • NBFSM is a part of the FSPF (fabric shortest path first) 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 ISL (interswitch link) 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.
PDM Parity data manager 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 These messages indicate panic dump trace files have been created.
PLAT This message indicates hardware problems.
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
end points or traffic with particular frame formats, such as SCSI frames, IP
frames, and customer-defined frames.
Table 4 System module descriptions (continued)
System
module
Description