11-20-2012 09:41 PM - edited 03-18-2019 12:10 AM
Hi,
When NTP in starting status, the time reflect the correct time, but after synchronized, the time always 15mins ahead.
Solved! Go to Solution.
11-21-2012 12:46 AM
On virtual VCSs the vmtoolsd synchronises the time with the VM host. The VCS NTP system also does this. If the host's time is not properly synchronised the 2 systems will fight causing the time to jump and NTP to eventually give up causing alarms to be raised etc.
There is a fix in X8 to stop vmtoolsd syncing the time, so just the VCS software will set the time, but I'll need to talk with the developers to see if anything can be done before that release to help systems in the field. Setting the NTP and time correctly on the VM Host should help though.
11-20-2012 11:33 PM
Do you see same result for time sync even you configure different NTP server on VCS?
11-20-2012 11:36 PM
How stable the reachability to each configured NTP server? (do you see number of “x” in reachability under NTP server status?
Can you post snapshot of Time configuration page including NTP server status and system time (in bottom of WebGUI section)?
11-20-2012 11:46 PM
see below for the picture you're asking for, btw, I found the vcs didn't sync with NTP, instead it's synced with the ESXi host machine, which I've logged in to the ESXi by vsphere client, checked the time, it looks the time also ahead of 15 mins.
11-20-2012 11:53 PM
Can you change extension of picture to other and post it again?
Seem you are trying to post picture with tiff format but I don’t see it on post…
11-21-2012 12:57 AM
HI, Guy
I think that's the explaination more sense for my experience on this, anyway, now I've set the correct time on the ESXi, so that the VCSc can get the correct time from ESXi, no matter how NTP runs....so far it's work, hope X8 will fix this, and get NTP back working.
11-21-2012 01:13 AM
I've just chatted with the developer - he said setting the time right on the ESXi host is the best fix, and then in X8 even if the time is wrong, we'll only get time from the VCS NTP settings and not try and also get it from the ESXi host via VM tools, so won't get in to this "argument" for the correct time setting.
11-21-2012 12:46 AM
On virtual VCSs the vmtoolsd synchronises the time with the VM host. The VCS NTP system also does this. If the host's time is not properly synchronised the 2 systems will fight causing the time to jump and NTP to eventually give up causing alarms to be raised etc.
There is a fix in X8 to stop vmtoolsd syncing the time, so just the VCS software will set the time, but I'll need to talk with the developers to see if anything can be done before that release to help systems in the field. Setting the NTP and time correctly on the VM Host should help though.
11-21-2012 12:55 AM
it should be fine, I can see the picture uploaded in my post by Safari.
11-20-2012 11:42 PM
yes, differernt NTP with same effect.
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