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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Write Under Run LUN:1 length:%x DL:%x
Read Under Run LUN:1 length:%x DL:%x
The above messages indicate that an initiator sent a SCSI read or write command to the S2A9550 with
a length in the CDB which is less than the length in the DL field of the command frame. This means
that the initiator is not building the command frames correctly. The S2A9550 will transfer the data
using the length specified in the CDB and report the error to the initiator. This often occurs if a LUN
is deleted and added back with a different blocksize without informing the initiator. This message is
intended to be informational only.
Read Over Run LUN:1 length:%x DL:%x
Write Over Run LUN:1 length:%x DL:%x
The above messages indicate that an initiator sent a SCSI read or write command to the S2A9550 with
a length in the CDB which is greater than the length in the DL field of the command frame. This
indicates that the initiator is not building the command frames correctly. The S2A9550 will transfer
the data using the length specified in the DL field of the command frame and report the error to the
initiator. This often occurs if a LUN is deleted and added back with a different blocksize without
informing the initiator. This message is intended to be informational only.
Fault: Host invalid operation code: %x
Fault: Load lock error n:%x m:%x
Warning: Host node finished read error L:%d N:%x RC:%x RD:%x P:%x
Warning: Host node finished write error L:%d N:%x WC:%x WD:%x
The above messages indicate that the S2A9550 has detected an internal firmware error. The S2A9550
may not function correctly after this type of error and data may have been lost. This indicates a
problem with the firmware. Downgrade the firmware in the S2A9550 to a previous version known to
be stable.
4.2.9 Rebuild Error Messages
Diagnostics Failed disk 1A
The above message indicates that the S2A9550 was unable to rebuild a failed disk because the disk
did not pass the diagnostic tests. Check the disk and replace it if it is no longer functional.
Timeout: Host 1 Rebuild LUN:0 Address:%x
The above message indicates that a rebuild request in the S2A9550 has taken too long to complete.
Timeout messages may be generated under heavy I/O conditions or when an error occurs, such as a
disk failure. This could also indicate that the S2A9550 is having hardware problems. Timeouts should
generally not occur during normal operation and should be reported if they keep reappearing.
Warning: Spare tier 1 configuration error: %d, %d
The above message indicates that the S2A9550 detected a discrepancy in the configuration
information for the spare disk. The S2A9550 may remove the spare from use if it cannot determine
the spare disk’s proper configuration. This may indicate a problem with the configuration of the
system or a firmware error.
Rebuild not needed on LUN: 0
The above message indicates that the S2A9550 tried to rebuild data on a LUN that no longer exists.
This usually occurs when a LUN is deleted while the system is rebuilding a disk. This message is
intended to be informational only.