DataDirect Networks S2A9550 User Manual Download

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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

in the array. Timeout messages may also be generated under heavy I/O conditions or when an error
occurs like a disk failure or a LIP on the Fibre Channel bus. Timeouts should generally not occur
during normal operation and should be reported if they keep reappearing.

4.2.4

Informational Messages

All other system messages are used to inform the operator of a change in the system status. These
messages do not indicate a problem with the S2A9550 but may indicate a problem that requires user
intervention.

Failing Disk 1A

Replacing Failed Disk 1A with Spare Disk 1S

All informational messages that are related to an I/O command from an initiator will be displayed
with the initiator information. This will include the initiator’s 64-bit World Wide Name, the host port
the initiator is communicating on, the source ID the initiator is using on the Fibre Channel bus, and
the exchange ID of the SCSI command (see following example).

Read Address error LUN:0 address:80000000 length:1

WWN:2000000011111111 port:4 S_ID:10 OX_ID:4189

4.2.5

SDRAM and Cache Error Messages

Warning: SDRAM not detected on disk channel A, slot 0.

Warning: SDRAM not detected on disk channel A, slot 1.

The above messages indicate that the S2A9550 cannot locate the SDRAM on the disk channel. The
SDRAM should be installed in slot 0 of each disk channel. If the SDRAM is installed in slot 1 on one
channel, then all the other channels must have the SDRAM installed in slot 1 as well. This error will
prevent the system from running normally. Make sure the SDRAM is installed correctly.

Warning: SDRAM configuration mismatch detected on channel A, slot 0.

Warning: SDRAM configuration mismatch detected on channel A, slot 1.

The above messages indicate that there is a mismatch on the SDRAM configurations. The S2A9550
requires that all the SDRAM installed have the same size, configuration and speed. This error will
prevent the system from running normally. Make sure the SDRAM is installed correctly.

Warning: Cache diagnostic failure on host port 1.

Warning: Cache diagnostic failure on disk channel A.

The above messages indicate that the S2A9550 performed a diagnostic test on the SDRAM from the
host and disk sides and discovered an error. This error will prevent the system from running
normally. Make sure the SDRAM is installed correctly.

Warning: Unknown cache diagnostic status on host port 1.

Warning: Unknown cache diagnostic status on disk channel A.

The above messages indicate that the SS2A9550 performed a diagnostic test on the SDRAM from the
host and disk sides and discovered an error with the test itself. This error will prevent the system
from running normally. This may indicate a problem with the firmware.

Timeout: Cache diagnostic host port 1.

Timeout: Cache diagnostic disk channel A.

The S2A9550 performed a diagnostic test on the SDRAM from the host and disk sides but the test took
too long to complete. This error will prevent the system from running normally. This may indicate a
problem with the hardware.