Ooooh I like that one!
The thread got a little confusing --
Are we talking about using NTP as a client on VMs?
Or using VMs to run NTP servers?
If as a server:
Hell NAH! Don't do it. Like everyone said, the clock available to the
OS isn't reliable, you don't want its drift to a
On 17/02/2020 21:52, Mike Hammett wrote:
How many NTP servers do you guys run?
I just spun up two NTP servers in different locations on this network.
Metaswitch just asked me for at least four (preferably five, or even
more). Right now, the ones I have are just referencing the US pool.
Eventua
I was looking to get a couple Pis and use them to feed the VMs, but we don't
currently have many (any) places on our fiber plant to locate even a Pi GPS
box. That'll change in the coming months, but that's not now.
BTW: It seems like it's about $50 per hat to add GPS to a Pi, so we're probably
I wouldn't call it incredibly oversubscribed, though we are getting a
little close on memory these days.
http://hf0002.uah.edu/sharex/chrome_nj0IR7SmQr.png
We would have pursued it more, but after reading that the general
wisdom was to not do it, we just stopped doing it, and things got
better, a
I wouldn't say we need it to be "really precise," but we do need it
within a couple of seconds, and on ESXi 6 we were seeing boxes as far
as 500ms off. It may not apply to all VM environments, so I guess it
could be worth testing. But it certainly scared me off. With physical
NTP servers we achieve
Interesting. I'm thinking there's something else off there. Perhaps the
hypervisor is incredibly oversubscribed?
On Mon, Feb 17, 2020 at 04:12:59PM -0600, Hunter Fuller wrote:
> I wouldn't say we need it to be "really precise," but we do need it
> within a couple of seconds, and on ESXi 6 we were
On Mon, Feb 17, 2020 at 04:00:25PM -0600, Hunter Fuller wrote:
> On Mon, Feb 17, 2020 at 3:57 PM Mike Hammett
> wrote:
> > Is having four VMs running NTP a ridiculous proposition (well, other
> > than resources, which it'll consume very little)?
>
> Yes. NTP servers should never run in VMs.
I d
On Mon, Feb 17, 2020 at 3:57 PM Mike Hammett wrote:
> Is having four VMs running NTP a ridiculous proposition (well, other than
> resources, which it'll consume very little)?
Yes. NTP servers should never run in VMs.
Here's a good overview:
https://serverfault.com/questions/106501/what-are-the-
How many NTP servers do you guys run?
I just spun up two NTP servers in different locations on this network.
Metaswitch just asked me for at least four (preferably five, or even more).
Right now, the ones I have are just referencing the US pool. Eventually,
they'll reference on-net GPS-ba
