After the installation finishes and you connect the first time with the vsphere client a message is displayed.
Esx 6 5 system logs on host are stored on non persistent storage.
If the logs are stored on a local scratch disk vcenter will display an alert stating system logs on host xxx are stored on non persistent storage configure esxi syslog location vsphere web client.
When you are booting up an esxi host using a usb or sd card you might commonly get this system logs are stored on non persistent storage warning message on your esxi hosts.
Vmware esxi syslog errors system logs on host host name are stored on non persistent storage and system logging is not configured on host.
Solved system logs are stored on non persistent storage september 13 2017 january 17 2018 vsaiyan while upgrading esxi hosts from 6 0 u1 to 6 0 u3 i got this warning as showing in below image.
Vcenter select host configure advance system settings.
Click the manage tab then click settings.
The esx problem syslog nonpersistent warning means that the system writes logs scratch to the non persistent usb device and if you restart your host they won t be saved.
Thus in case of any host issues you won t be able to examine its logs or provide any data to vmware technical support team.
After a reboot the log files disappear.
Browse to the host in the vsphere web client navigator.
Click on edit and search for syslog global logdir.
Recently i had to install a few vmware esxi 5 5 host on removable sd cards.
For esxi 6 5 6 7 and higher the changes take effect immediately.
I came across with this when i m implementing a cluster with dell power edge servers and hypervisor os was installed on the sd cards.