ECS: Dial Home: Disk missing for a long time - Symptom Code: 2066

Summary: This knowledge article explains why the alert 'Disk missing for a long time' is reported with symptom code 2066.

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Symptoms

A disk was present in the ECS, then disappeared and did not appear in an hour. This is seen from ECS node 3.7 with the event string:  
Node SN={Node SN}: Disk SN={diskSerialNumber} on rack={rack}, node={fqdn}, slot={slot} has been missing more than 60 minutes. Disk Details: Type={HDD/SSD}, Model={Vendor Model}, Size={size} GB, Firmware={firmware}

Cause

This can be due to a bad disk or old firmware disk version.

Resolution

Open a service request with Dell technical support regarding this knowledge article for further assistance.

Affected Products

ECS
Article Properties
Article Number: 000195805
Article Type: Solution
Last Modified: 17 Dec 2025
Version:  5
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