Thank you Adrien and Herbert for the links. I had already found those
links except the Solucorp link. The solucorp link explains exactly
what unification is doing, and the ramifications, in slightly more
detail. I have more detailed questions; however, I'll save them for a
new thread.
Thanks again.
John
On 12/3/06, Herbert Poetzl <herbert@13thfloor.at> wrote:
> On Sun, Dec 03, 2006 at 10:47:11PM -0600, John Alberts wrote:
> > I don't mean to hijack the thread here, but unification as a way to
> > help his resource utilization, could someone please point me to a good
> > resource for unification?
>
> http://linux-vserver.org/Special:Search?search=unification
>
> http://linux-vserver.org/Frequently_Asked_Questions#What_is_Unification_.28vunify.29.3F
>
> http://oldwiki.linux-vserver.org/alpha+util-vserver
>
> > I have searched the vserver wiki, but there doesn't really seem to be
> > anything on how to setup and use unification. Also, does unification
> > change the upgrade/maintenance process?
>
> that really depends, with recent kernel versions
> (see http://linux-vserver.org/Feature_Matrix) CoW
> is supported for unified guests, which basically
> doesn't require any additional handling, except
> for a sweep through the files every now and then
> to re-unify common files ...
>
> if the guest maintenance is done from the host,
> older setups will benefit without giving up any
> freedom, otherwise you should know that the guest
> distro handles the immutable but unlinkable files
> gracefully, otherwise you'll get complaints from
> the guest admin ...
>
> HTH,
> Herbert
>
> > Thanks
> > John
> >
> >
> > On 12/3/06, Herbert Poetzl <herbert@13thfloor.at> wrote:
> > >On Sun, Dec 03, 2006 at 02:16:55PM -0500, Adrien Laurent wrote:
> > >> Hi,
> > >>
> > >> I have a project of giving away free voip servers using vserver.
> > >> Each servers will be a minimal centos installation with few
> > >> additionnal packages.
> > >
> > >you should make sure that you utilize unification
> > >in this case, as it will probably be the best shared
> > >resource in your setup (only config files will differ)
> > >so given the server is configured well, and all guests
> > >are 'idle' you can probably put 300+ there
> > >
> > >here some tips _for your_ setup:
> > >
> > > - make sure to use unification (saves disk space
> > > and most important memory for mappings and caches)
> > > - reduce the number of guest processes, maybe even
> > > to a single process (the VoIP app) plus a fake init
> > > - configure higher HZ values (1000Hz) disable
> > > preemption, get apic running, configure the hard
> > > cpu scheduler for timeslicing
> > >
> > >HTH,
> > >Herbert
> > >
> > >> They will all have a public ip - no firewall.
> > >>
> > >> Considering that all the servers are idle - how many of them can a
> > >> regular server (Pentium 3.0Ghz - 2go ram) handle ?
> > >>
> > >>
> > >> Thanks,
> > >>
> > >>
> > >> Adrien
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> --
> > >> Adrien Laurent
> > >> Chief Information Officer
> > >> (514) 284-2020 x 202
> > >> adrien@modulis.ca
> > >> www.modulis.ca
> > >>
> > >> Technical questions? support@modulis.ca
> > >> _______________________________________________
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> > >> Vserver@list.linux-vserver.org
> > >> http://list.linux-vserver.org/mailman/listinfo/vserver
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> > >
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Received on Mon Dec 4 14:30:40 2006