We have a DCX in our data centre behaving very strangely.
It maintains 4 ICL links to another DCX. Please see attached notepad sheet showing a section of the RASlog.
Recently we are seeing ICL ports going marginal. sometimes 32, sometimes 16, sometimes 8. This is usually accompanied by bottleneck alerts. However we are not seeing any adverse affect on the SAN.
We are unable to determine the cause of the ICL ports going marginal. Looking at the excel sheet, the marginal ports span both core blades 5 and 8, so we do not think it is a case of 4 faulty ICL cables.
Could it be a backplane issue? Would a hafailover help?