Domain Time off for some members
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@Donahue said in Domain Time off for some members:
ok, host time was wrong, but it was way wrong, more than the 6 minutes. How do I tell ESXi not to sync with host?
That's the wrong thing to look at. You want your VM's to not sync with ESXi. And maybe you don't want ESXi to sync with the hardwarde (because you can sync to the internet).
In the settings for VMWare tools in the VMs there should be setting - sync with ESXi or something... disable that.
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@Donahue said in Domain Time off for some members:
ok, host time was wrong, but it was way wrong, more than the 6 minutes. How do I tell ESXi not to sync with host?
You can set your guests time server to be something other than the host.
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ok, that setting was already disabled in the VMWare tools options, so that's not the problem.
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@Donahue said in Domain Time off for some members:
ok, that setting was already disabled in the VMWare tools options, so that's not the problem.
Fix it anyway. The host time needs to be right.
Also, your VM sets time on boot to that even if that option is not checked. Until the VM network comes online and sets itself to whatever source it has.
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The host time has been set correctly, but I don't think that was the source of the problem.
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@JaredBusch said in Domain Time off for some members:
Also, your VM sets time on boot to that even if that option is not checked. Until the VM network comes online and sets itself to whatever source it has.
But this VM has not been rebooting, it just keeps changing while running.
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@Donahue said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
Also, your VM sets time on boot to that even if that option is not checked. Until the VM network comes online and sets itself to whatever source it has.
But this VM has not been rebooting, it just keeps changing while running.
Didn't say it was. Just saying fix this problem also.
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@JaredBusch said in Domain Time off for some members:
@Donahue said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
Also, your VM sets time on boot to that even if that option is not checked. Until the VM network comes online and sets itself to whatever source it has.
But this VM has not been rebooting, it just keeps changing while running.
Didn't say it was. Just saying fix this problem also.
oh ok, I understand.
I feel like maybe there is some sort of group policy that should be set to make this sync work correctly, and that somehow mine is not set. Although, this problem is only recent.
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I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
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@Donahue said in Domain Time off for some members:
I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
Windows could be checking hte hardware clock. This has nothing to do with VM tools settings.
And your host (the hardware) was off.
But Windows was not moving it too far..
Answer: Windows sucks.
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@JaredBusch said in Domain Time off for some members:
@Donahue said in Domain Time off for some members:
I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
Windows could be checking hte hardware clock. This has nothing to do with VM tools settings.
And your host (the hardware) was off.
But Windows was not moving it too far..
Answer: Windows sucks.
Interesting - does EXSi not virtualized the hardware clock to itself as well?
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@Dashrender said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
@Donahue said in Domain Time off for some members:
I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
Windows could be checking hte hardware clock. This has nothing to do with VM tools settings.
And your host (the hardware) was off.
But Windows was not moving it too far..
Answer: Windows sucks.
Interesting - does EXSi not virtualized the hardware clock to itself as well?
English please?
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@JaredBusch said in Domain Time off for some members:
@Dashrender said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
@Donahue said in Domain Time off for some members:
I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
Windows could be checking hte hardware clock. This has nothing to do with VM tools settings.
And your host (the hardware) was off.
But Windows was not moving it too far..
Answer: Windows sucks.
Interesting - does EXSi not virtualized the hardware clock to itself as well?
English please?
Does ESXi provide direct access the the real hardware clock, or does it create a virtual HW clock that is basically the time EXSi has itself - which could be different from the real hardware.
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@Dashrender said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
@Dashrender said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
@Donahue said in Domain Time off for some members:
I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
Windows could be checking hte hardware clock. This has nothing to do with VM tools settings.
And your host (the hardware) was off.
But Windows was not moving it too far..
Answer: Windows sucks.
Interesting - does EXSi not virtualized the hardware clock to itself as well?
English please?
Does ESXi provide direct access the the real hardware clock, or does it create a virtual HW clock that is basically the time EXSi has itself - which could be different from the real hardware.
how would it do that? I dont think you could have a virtualized clock unless it was tied to some authoritative time sources, and the only two I can think of are the hardware clock and an NTP type clock.
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@JaredBusch said in Domain Time off for some members:
@Donahue said in Domain Time off for some members:
I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
Windows could be checking hte hardware clock. This has nothing to do with VM tools settings.
And your host (the hardware) was off.
But Windows was not moving it too far..
Answer: Windows sucks.
the host clock was out like 8 hours, because it wasnt set to the correct time zone. Although, maybe it drifted by the 6 minutes and windows itself was correcting for the time zone difference? I now wish I would have looked before I just set it to an NTP source. It might have been the smoking gun I was looking for.
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@Dashrender said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
@Dashrender said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
@Donahue said in Domain Time off for some members:
I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
Windows could be checking hte hardware clock. This has nothing to do with VM tools settings.
And your host (the hardware) was off.
But Windows was not moving it too far..
Answer: Windows sucks.
Interesting - does EXSi not virtualized the hardware clock to itself as well?
English please?
Does ESXi provide direct access the the real hardware clock, or does it create a virtual HW clock that is basically the time EXSi has itself - which could be different from the real hardware.
The "hardware" clock as far as a VM is concerned is WTF ever the host reports to it when the guest asks.
As for what the host reports? likely whatever time it has. I've never bothered to dig that deep into the stack because it doesn't matter.
You setup your clocks to sync to proper sources and you never have a problem.
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@Donahue said in Domain Time off for some members:
@JaredBusch said in Domain Time off for some members:
@Donahue said in Domain Time off for some members:
I just realized it must be related to this host. I recently moved the main VM that I am having a problem with to this host.
Windows could be checking hte hardware clock. This has nothing to do with VM tools settings.
And your host (the hardware) was off.
But Windows was not moving it too far..
Answer: Windows sucks.
the host clock was out like 8 hours, because it wasnt set to the correct time zone. Although, maybe it drifted by the 6 minutes and windows itself was correcting for the time zone difference? I now wish I would have looked before I just set it to an NTP source. It might have been the smoking gun I was looking for.
Of course it would Timezones don't matter.
This means you were not off by 8 hours.
All systems use UTC.
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@JaredBusch I think we are agreeing, but not saying the same things.
The host was set to itself as the time source, but was off by at least several hours. But that might have been several hours and 6 minutes, which when it made it all the way down into the VM meant that the hours were corrected, but not the 6 minutes? I don't know and I am grasping at straws here.
Either way, it is now set to NTP time. I still don't understand how windows could switch back and fourth between two time sources in a domain setting, especially considering how much of AD is dependent on good time keeping.
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@Donahue said in Domain Time off for some members:
@JaredBusch I think we are agreeing, but not saying the same things.
The host was set to itself as the time source, but was off by at least several hours. But that might have been several hours and 6 minutes, which when it made it all the way down into the VM meant that the hours were corrected, but not the 6 minutes? I don't know and I am grasping at straws here.
Either way, it is now set to NTP time. I still don't understand how windows could switch back and fourth between two time sources in a domain setting, especially considering how much of AD is dependent on good time keeping.
Do the logs tell you what source it's changing to match?
