Hi...

not sure if this is germain to your timing issue with vmware...

http://www.vmware.com/pdf/vmware_timekeeping.pdf

we had an issue that was killing us regarding our virtual linux servers in
vmware going way off course regarding timing.

as i recall, there was a config parameter that we were able to set, based on
the above article...

good luck!!



-----Original Message-----
From: redhat-list-bounces@(protected)
[mailto:redhat-list-bounces@(protected)
Sent: Tuesday, April 29, 2008 10:35 AM
To: General Red Hat Linux discussion list
Subject: Re: Linux Virtual Servers


---- Original Message -----
From: "Northrup, Wilson" <wilson_northrup@(protected)>
To: "General Red Hat Linux discussion list" <redhat-list@(protected)"
<debajit_kataki@(protected)>
Sent: Tuesday, April 29, 2008 6:50 AM
Subject: RE: Linux Virtual Servers


> How's your time synchronization over say, a week, on the linux servers
> running on ESX? Are you running any RHEL 64bit?  Any drift?
>

I have never had much luck with clock synchronization (of Linux guest hosts)
running 64-bit VMware Workstation on CentOS 4.6 server. I have tried all
the runtime kernel parameters, compiling custom kernels, using VMWare tools,
and every other option I have found on the VMware site, but nothing has
worked well for me. I usually wind up setting up a cron job to synch to the
server every 5 minutes or so. Horrible hack, but it is the only thing that
has worked for me.

On the other hand, I have had no issues with VirtualBox (with either Windows
or Linux guests). I run both VirtualBox guest and VMWare guest OSes
side-by-side without too many issues. I do not have any 64-bit guests, so I
am not sure if things are better in that realm.

The clock synch issue in VMWare has always plagued me.

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