Re: [Xen-users] Problema keeping Time in HVM Guest

[Angel Motta <angelmotta@xxxxxxxxx>]

Nerijus
I could sync ntp cliente with ntpserver in HVM guest, but when I reboot the guest the time is delayed 4hours.

Some tip more?
--
Angel

2010/3/11 Nerijus Narmontas <n.narmontas@xxxxxxxxx>

Yes, keep the service running.

--

Nerijus Narmontas

On Thu, Mar 11, 2010 at 4:13 PM, Angel Motta <angelmotta@xxxxxxxxx> wrote:
> Thanks Nerijus
> Ok I will try this "localtime=1", is a little complicated because is running
> in prod.
> For that reason I have a question, I will configure this setting and reboot
> the VM but the VM has to continue with service ntp running? o I have to
> disable this service befere the reboot?
>
> Thanks for your assistance
> --
> Angel
>
>
>
> 2010/3/11 Nerijus Narmontas <n.narmontas@xxxxxxxxx>
>>
>> Hi,
>>
>> Try setting localtime=1 in VM config file and reboot. It then should
>> use dom0 server's time.
>>
>>
>> --
>> Nerijus Narmontas
>>
>>
>> On Thu, Mar 11, 2010 at 8:21 AM, Angel Motta <angelmotta@xxxxxxxxx> wrote:
>> > Hi List
>> > This is my first time that I write to the list. I have a serious problem
>> > with the time in one HVM Guest, because this VM has the time ahead 20min
>> > compared with the host Xen.
>> > I have tried to configure ntp client in the host Xen and in the HVM
>> > Guest
>> > but the problem continuos, the hvm never get sync with the ntp server.
>> > Then
>> > i configured the time with the ntpdate command in the crontab every
>> > minute
>> > and disable acpi=0 and reboot, but the time adjust 3 or sometimes
>> > 7seconds
>> > on the HVM Guest and this is critical because this Guest is db pgsql.
>> >
>> > I wan to know what is the procedure for this case??. I read the option
>> > of:
>> > echo 1 > /proc/sys/xen/independent_wallclock but this is only for the
>> > paravirtualized guest because i my guest hvm I dont have this file and i
>> > can't apply this method.
>> >
>> > Host Xen:
>> > Centos 5.3
>> > xen-3.0.3-80.el5_3.3
>> >
>> > HVM Guest
>> > Centos 5.3
>> >
>> > I have one windows 2003 in this Host Xen and this guest have the time ok
>> > using ntpclient.
>> > --
>> > Atte
>> > Angel Motta Paz
>> >
>> > _______________________________________________
>> > Xen-users mailing list
>> > Xen-users@xxxxxxxxxxxxxxxxxxx
>> > http://lists.xensource.com/xen-users
>> >
>
>
>
> --
> Atte
> Angel Motta Paz
>

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-- 
Atte
Angel Motta Paz
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