esxi set time via ntp if lag is more than a few hours?

Today, I discovered an additional step.

If you standup a server esxi with a static ip address, you must manually assign the ntp servers.

Fair enough, if you set the ntp server and tell it to restart ntp, you wait to update the time.

If the offset is too big between the client and the server, it will not set the time.

Is this a standard behavior of linux, I've never seen.

If your time differential is too large it will not refresh time from ntp server, until you set it manually once.

This is the behavior that I lived on four systems of 4.0u2, I place today.

I had similar problems, don't know what I did to solve it, but I never got it again since I started to install ESX in following these steps about the hour.

1. set the BIOS to the UTC clock

2. install esx

3. connect through the client vsphere, go to time config page and put in place NTP with pool.ntp.org, restart the service.

bounce of the ESX box, re - connect and the time is perfectly synchronized with my local computer.

I hope this helps.

Tags: VMware

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