[cisco-voip] Sizing Callmanager Server

[Jonathan Charles]

OK, then you should be fine...

If a sub fails, then the pub will take over that chunk of 2500, and
you shouldn't get overloaded...

The question is, are your CallManager groups set up so that the phones
are balanced between the servers...


Jonathan

On Dec 7, 2007 7:59 AM, Reto Gassmann <voip at mrga.ch> wrote:
> Hi Jonathan
>
> thanks for help.
> We have six Callmanagers running (1 Pub and 5 Sub) and two of the handle the
> phones and three handle CTI. THen there is the Publisher.
>
> Reto
>
> Zitat von Jonathan Charles <jonvoip at gmail.com>:
>
>
> > If you have 5000 phones, you should have at least 3 servers, with 2500
> > registered to each of the two subs and the pub backing up each.
> >
> > However, I would recommend 4, with three subs, with one sub backing up
> > another and the pub backing up the other sub.
> >
> >
> >
> > Jonathan
> >
> > On Dec 7, 2007 6:51 AM, Reto Gassmann <voip at mrga.ch> wrote:
> > > Hello
> > > we run our Callmanager 4.2(3) on HP DL 380 G4 Servers (MCS-7854 H2). We
> > have the
> > > phones configured on two servers. So there are about 2550 Phones per
> > server. If
> > > one server fails the phones change to the other and the phones sum up to
> > over
> > > 5000 phones on this single server.
> > > In Service Parameters Configuration / Cisco CallManager I found an entry
> > called
> > > Maximum Number of Registered Devices* and the value is 5000. So what
> > happens if
> > > I have more than 5000 phones??
> > >
> > > According to the SRND the 7845 can handle up to 7500 devices. Has any one
> > an
> > > experience what happens to this if I enable cluster security?
> > >
> > > Thanks for help
> > > Reto
> > >
> > >
> > >
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> > >
> >
>
>
>
>
>