05-09-2017 01:39 AM
I have 2 questions about Trunking.
There are 2 fabrics at my company and each fabric has 2 switches with trunking license enabled.
There are 2 fiber cables connection between 2 switches.
Several AIX servers connect to one switch and access the SAN storage which connects to the other switch.
1.Does AIX show fscsi link error if I disconnect one fiber cable between 2 switches even I enable trunking?
2.Does AIX show fscsi link error if Rx Power of SFP is too low?
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05-09-2017 02:29 AM - edited 05-09-2017 02:33 AM
Attached is a data sheet concerning your point 1.
Concerning point 2, if RX power is low on a SFP attached on AIX, concerned storage or ISL, this can generate errors on frames reception, errors counters will show that and eventually fscsi link error.
05-11-2017 07:35 PM
Thanks for giving me the answer to point2
I use porterrshow and sfpshow portid to check the status of ISL ports and SFP. One port CRC error count increase rapidly and Rx is too low. I replace the fiber cable and the status become normal and AIX servers do not show fcsisi link error anymore.