Technical data

10-12 Fabric OS Administrator’s Guide
Publication Number: 53-0000518-09
Recognizing MQ-WRITE Errors
10
6. Print the output from the cfgShow command.
7. Compare the two fabric zone configurations line by line and look for an incompatible
configuration.
8. Connect to one of the fabrics.
9. Run zone configure edit commands to edit the fabric zone configuration for the segmented switch
(refer to Table 10-3 on page 10-10 for specific commands.
If the zoneset members between two switches are not listed in the same order in both configurations, the
configurations are considered a mismatch; this results in the switches being segmented in the fabric.
For example:
[cfg1 = z1; z2] is different from [cfg1 = z2; z1], even though the members of the
configuration are the same.
One simple approach to making sure that the zoneset members are in the same order is to keep the
members in alphabetical order.
To reorder the zone member list
1. Use the output from the cfgShow for both switches.
2. Compare the order that the zone members are listed. Members must be listed in the same order.
3. Rearrange zone members so that the configuration for both switches is the same. Arrange zone
members in alphabetical order, if possible.
Recognizing MQ-WRITE Errors
An MQ error is a message queue error. Identify an MQ error message by looking for the two letters M
and Q in the error message:
MQ errors can result in devices dropping from the SNS or can prevent a switch from joining the fabric.
MQ errors are rare and difficult to troubleshoot; resolve them by working with the switch supplier.
When MQ errors are encountered, execute the supportSave command to capture debug information
about the switch; then, forward the supportSave data to the switch supplier for further investigation.
Correcting I
2
C Bus Errors
I
2
C bus errors indicate defective hardware; the specific item is listed in the error message. Refer to the
Fabric OS System Error Message Reference Manual for information specific to the error that was
received. Some CPT and Environmental Monitor (EM) messages contain I
2
C-related information.
If the I
2
C message does not indicate the specific hardware that might be failing, begin debugging the
hardware, as this is the most likely cause. The next sections provide procedures for debugging the
hardware.
2004/08/24-10:04:42, [MQ-1004], 218,, ERROR, ras007, mqRead, queue = raslog-test-
string0123456-raslog, queue I
D = 1, type = 2