Symptoms

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After Upgrading to ESX Version  6.5 and 6, serial number of the ESX host is updated with Chassis serial number.

Release

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All Releases

 

Cause

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-Servicenow discovery looks at the value serviceTag on the Vcenter to populate the serial number of the ESX server. This is a VMware bug where they have mapped the ServiceTag value with chassis serial number in versions starting from 6.5 and 6.7.

Resolution

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Vmware confirmed this is a known issue with VMWare ESX 6.5 and 6.7.
VMWare has resolved the issue in ESX 6.7 U1 and has a pending fix for version (ESX 6.5) to be released in November’s 6.5 Patch 03