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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
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
4.2.8 Host Error Messages
Warning: Host Array parity error.
The above message indicates that the S2A9550 detected an array parity error when a host Fibre
Channel port was reading the data from the SDRAM. This indicates that the parity data may not be
consistent or the data may be corrupted. This may have been caused by an error with the disks.
Warning: Host Bus parity error: %03x
Warning: Host %d, Bus and array parity error: %03x
The above messages indicate that the S2A9550 detected a bus parity error when a host Fibre Channel
port was reading the data from the SDRAM. The hex number at the end of the message is a bitmap
that indicates which disk channels the error was detected on. This indicates a problem with the
hardware. Run the cache diagnostics on the S2A9550.
Warning: Host Internal error.
The above message indicates that the S2A9550 detected an internal error in a host Fibre Channel port
when transferring data. This indicates a problem with the hardware or the firmware. Run the cache
diagnostics on the S2A9550.
Timeout: Host SCSI command:%02X LUN:1 Lane:%d
The above message indicates that a SCSI command from an initiator 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 might have trouble communicating with the
initiator. Timeouts should generally not occur during normal operation and should be reported if
they keep reappearing. Check the connection to the initiator on the host port.
Command %02X aborted LUN:1 T:%x
The above message indicates that a SCSI command from an initiator was aborted. The abort may
have come from the initiator, a target reset, or from a timeout in the S2A9550. This could also indicate
that the S2A9550 might have trouble communicating with the initiator. Aborts should generally not
occur often during normal operation and should be reported if they keep reappearing. Check the
connection to the initiator on the host port.
Target Reset from host 1
The above message indicates that a SCSI target reset message was received on a host port. The target
reset came from an initiator connected to the S2A9550. This could also indicate that the S2A9550
might have trouble communicating with the initiator. Target resets should generally not occur often
during normal operation and should be reported if they keep reappearing. Check the connection to
the initiator on the host port.
Read Address error LUN:1 address:%x length:%x
Write Address error LUN:1 address:%x length:%x
Write Flush Address error LUN:1 address:%x length:%x
The above messages indicate that an initiator sent a SCSI command to the S2A9550 for an address
beyond the capacity of the LUN. This means that the initiator is sending an illegal address request to
the S2A9550. The S2A9550 will report the error to the initiator without transferring any data. This
often occurs if a LUN is deleted and added back with different capacity without informing the
initiator. This message is intended to be informational only.