PowerChute Network Shutdown fails to power down ESXi host and records in the error log "cannot obtain HostSystem using findByIP or findByDnsName for critical host:"

Issue:

PowerChute error log reports "cannot obtain HostSystem using findByIP or findByDnsName for critical host:" for the configured ESXi host listed in the host protection page, and the host fails to power down.

Product:

PowerChute Network Shutdown

Environment:

PowerChute configured with VMware vCenter Server

Cause:

This concerns how the host's name appears in the vCenter inventory.

Example: The vCenter inventory lists the host as apc-esxi01.somedomain.com , while on the ESXi host, the hostname appears as APC-ESXI01. This mismatch causes the FindByDNSName API call to fail when issued against an ESXi host.

Solution:

Log in to each ESXi host via SSH and use esxcli to update the hostname to match what appears in vCenter:

esxcli system hostname set --fqdn apc-esxi01.somedomain.com

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