DataDirect Networks S2A9550, User Manual

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S 2 A 9 5 5 0 M e s s a g e s a n d D e s c r i p t i o n s
D a t a D i r e c t N e t w o r k s S 2 A 9 5 5 0 U s e r G u i d e
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4.2 S2A9550 Messages and Descriptions
This section provides descriptions of the S2A9550 messages. The following describes the format and
content of the system messages displayed by the S2A9550 and explains the system messages
(displayed on the RS-232 terminal, Telnet session, syslog messages, and SNMP traps) to aid
administrators in diagnosing system events. The messages generated by the S2A9550 fall into the
following categories: Fault messages, Warning messages, Timeout messages, and Informational
messages.
4.2.1 Fault Messages
All system fault messages begin with “Fault:” as shown below.
Fault: Disk read piece error!
These are the most serious messages displayed by the S2A9550 and should be dealt with immediately.
These messages indicate that a hardware or software error has occurred which is unrecoverable and
may cause the S2A9550 to become unstable. This means that the firmware has detected an error that
prevents further operation. The unit may not function correctly after this type of error and a graceful
shutdown of the system may not be possible. Steps should be taken to isolate the error that may allow
the unit to continue functioning but continued operation is not recommended.
Actions to be taken in the field:
• Run diagnostics on the S2A9550 to insure it is still operational.
4.2.2 Warning Messages
All system warning messages begin with “Warning:” as shown below.
Warning: SDRAM not detected on disk channel A, slot 0.
These messages indicate that the S2A9550 has encountered a serious error that may require user
intervention. These messages may indicate a hardware error (such as a bus parity error), a failure of
a hardware component (such as the cache memory on a disk channel), or an internal firmware error
(such as a system variable going out of range).
NOTE : These errors do not include disk failures. Handling of disk failures is part of the normal
operation of the S2A9550 . Warning messages only indicate a problem with the S2A9550 itself.
The difference between a “Fault” and a “Warning” is that the firmware will take steps to continue
operation and insure the integrity of the data. However the firmware may be unable to continue
normal operation and data may be lost due to the error.
These errors should be dealt with immediately
and continued operation is not recommended.
Actions to be taken in the field:
• Run diagnostics on the S2A9550 to insure it is still operational.
• Downgrade the firmware in the S2A9550 to a previous version known to be stable.
4.2.3 Timeout Messages
All system timeout messages begin with “Timeout:” as shown in the following example.
Timeout: Read Disk 1A, Id:1
These messages indicate that the S2A9550 has timed out waiting for a data transfer such as a read
from an initiator. This means that the unit may have trouble communicating with an initiator or a disk