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NTP settings on host - quiesing issues

Posted on 2014-08-15
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Last Modified: 2014-08-26
HI all,

Had a call open with VMware for sometime now as all my VM's (apart from one cluster) fail when I try and snapshot using vmtools option on ifirst execution, but works if I try again.  Im told that its because the hosts havent been configured with a NTP server. But Im not sure how these should be configured. I have 2 clusters in the UK and 3 in Europe. Should I configure them with the NTP service, if so do i configure to the local DC's or just one DC?
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Question by:Matt
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14 Comments
 
LVL 124
ID: 40262728
Use an External Time Source. (e.g. internet, gps clock)

Point the DCs to the same External Time Source.

Disable VMs updating time form Hosts.

Members of the domain will get time from DC.
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Author Comment

by:Matt
ID: 40262731
So on my hosts I should configure with an external time source?
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LVL 124
ID: 40262734
Yes, that would be better.
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Author Comment

by:Matt
ID: 40262735
With these? but if the hosts are in different time zones how does that work?

server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
server 3.pool.ntp.org
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LVL 124
ID: 40262740
All Your hosts, will be in GMT.
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Author Comment

by:Matt
ID: 40262746
Hence you should never tick the box to syn VM time with host, correct?
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LVL 124
ID: 40262748
Well if you did, the Time Zone setting on the VM would take effect!

But it's recommended to sync your Windows VMs with the Domain.
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Author Comment

by:Matt
ID: 40262767
Ive added 0.pool.ntp.org to the NTP configuration and restarted the service on the host. Still doesn't sync correct time?
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LVL 124
ID: 40262824
access to 0.pool.ntp.org is not blocked ?

what time is it a showing?
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Accepted Solution

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Matt earned 0 total points
ID: 40262830
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LVL 124
ID: 40263056
Update to 5.5 U1
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Author Comment

by:Matt
ID: 40263073
Thats quite a big job to fix a small issue.
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LVL 124
ID: 40263082
It may also fix the SSL security issue.
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Author Closing Comment

by:Matt
ID: 40285228
Bug fix update fixed issue.
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