[cisco-voip] UCCX 5.01 upgrade to 7.01

[Ed Leatherman]

Inline below:

On Fri, Dec 3, 2010 at 5:44 PM, Bill Riley <bill at hitechconnection.net> wrote:
> We are planning an upgrade from UCCX 5.01 SR2 to 7.01 SR5. We will take the
> primary server offline to perform the upgrade
>
> in an isolated network to minimize the downtime involved. We currently have
> two servers in
>
> an HA configuration. I have the following questions:
>
>
>
> •       How can I force the failover from the primary node to the secondary
> node

I always just stop the CRS engine from the control center in appadmin
when i need to switch them

>
> •       How long does it take to switch from the primary to the backup

Pretty much instantly if its setup right. NOTE: any calls in queue or
in IVR will be dropped.

>
> •       Do the CAD clients automatically failover to the secondary server

Yes

>
> •       How long can the primary server be offline?

I do not believe there is a time limit.


>
> •       Does the secondary server maintain a copy of all of the call
> statistics while the
>
> primary server is offline?

yes. In fact usually when you run the historical reports client, it is
connecting to which ever server is NOT currently the active node (to
avoid performance impact)

>
> •       If the primary server is offline and a new CAD client is started,
> will it automatically
>
> connect to the secondary?

Yes.


>
> •       If I upgrade the primary server on an isolated network where it
> cannot communicate with
>
> the secondary server will the upgrade complete

Never tried it. Is there a particular reason you want to do that? It's
intended to upgrade with the other node in service.


>
> •       What will happen when I start the primary server after the upgrade
> to 7.01 and the
>
> secondary server is still at 5.0? Will the client continue to operate on the
> secondary
>
> server?

I believe the CAD clients will run on the secondary server until you
run the upgrade or otherwise shut off the CRS engine. Note that the
CAD clients will need to update before they will work on the new
version. I'm lucky in that we have a non-production window when I can
do maintenance like this, so I haven't monitored them too closely in
that specific situation.


>
> •       Will I then be able to upgrade the secondary server to 7.01?

When you run the upgrade program on the secondary node, it checks the
primary node to make sure it has upgraded successfully. If it has, it
permits you to continue the secondary node upgrade.


>
>
>
> Thanks for any help or experience you can provide.
>
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>
>

hope that helps.

-- 
Ed Leatherman