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08-31-2009, 09:50 AM
| | | Date/Time problem on a Zimbra Box Hello all,
I'm not sure if the problem is with Zimbra, but i have installed Zimbra OS Edition on a virtual machine (HyperV) under CentOS 5.2 since 4 months ago. I have a problem with the Date/Time on the machine, i set the correct Date/Time, after few hours or days, i notice that mails have wrong tima or date, i check the date and in found that the Date/Time are not correct.
Do you have any idea? It can comes from the HyperV ? From Zimbra?
Info: I have an other Exchange server on a virtual machine on the same HyperV server and i dont have any Date/Time problem on that Exchange Server.
Thank you for your help.
Regards. | 
08-31-2009, 10:29 AM
| | Zimbra Consultant & Moderator | |
Posts: 20,312
| | Quote:
Originally Posted by rachid Hello all,
I'm not sure if the problem is with Zimbra, | This isn't a Zimbra problem, it's a problem of running Linux under a VM.
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Regards
Bill
| 
08-31-2009, 10:56 AM
| | Advanced Member | |
Posts: 189
| | I know time drift issues are pretty common using VMware, and I assume the same probably applies to HyperV. This is most definitely not a Zimbra issue.
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Release 6.0.2_GA_1912.UBUNTU8_64 UBUNTU8_64 NETWORK edition + Mobile Option
Activesync with Moto Q9C, HTC Touch Pro, Palm Pro, & Palm Pre
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08-31-2009, 11:05 AM
| | | yeah not sure about hyperv but using esx paravirtualization with a vmi enabled linux kernel has eliminated time issues in linux guests for us | 
08-31-2009, 01:28 PM
| | | I've not tested this with HyperV, but in VMware, running an ntp daemon in the guest, may also work. However, do not forget to insert the option tinker panic 0
As the first line of /etc/ntp.conf. Also, I assume there is something in HyperV similar to the VMware guest daemon, which allows you to synchronize the clock between host and guest.
__________________ Menno Pieters | 
09-01-2009, 09:03 AM
| | Advanced Member | |
Posts: 189
| | Quote:
Originally Posted by bdial yeah not sure about hyperv but using esx paravirtualization with a vmi enabled linux kernel has eliminated time issues in linux guests for us | I've seen similar results with a machine I had time issues with, that I've upgraded to a VMI enable kernel and turned on VMI in the VM settings for the virtual machine and my time issues went away.
__________________
Release 6.0.2_GA_1912.UBUNTU8_64 UBUNTU8_64 NETWORK edition + Mobile Option
Activesync with Moto Q9C, HTC Touch Pro, Palm Pro, & Palm Pre
| 
09-01-2009, 10:13 AM
| | | Thank you,
I just installed the NTP daemon on the guest, i will monitor that for a couple of days and let you know.
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