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EMS reports ds.sas.running.disparity debug event

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fas-systems
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hw
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Applies to

  • FAS8300
  • DS460C shelf

Issue

  • System reported persistent debug events in EMS logs indicating running disparity errors on DS shelf modules:

Example:

::*> event log show -event *ds.sas.running.disparity*
Time            Node                  Severity  Event
------------------------------------------------------------
11/7/2025 09:09 node02  DEBUG     ds.sas.running.disparity: [DCM5-1] on channel 0d shelf ID 11 IOMA bay - reports running disparity errors.
11/7/2025 07:21 node02  DEBUG     ds.sas.running.disparity: [DCM4-0] on channel 0d shelf ID 10 IOMA bay - reports running disparity errors.

  • IOM module reseating and SAS cable replacement did not resolve the issue.

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