[cisco-voip] live updates on subscriber - anyone tried it?

[Jason Aarons (US)]

I say no issue with OS discrepancies of say 2000.2.4sr3 publisher versus
2000.2.4sr7 on subscriber.  CallManager just an application running on
Windows.  Anything like say SQL specific would present a potential
problem.

 

Notepad doesn't care if I run XP Service Pack 1 or XP Service Pack 1
with hotfix Q435670.

 

The SRND and design guide would likely state this is not best practice
and is not supported by TAC, but it would work and accomplish your goal
of not having to work all night/weekends to do OS updates.

 

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ed Leatherman
Sent: Tuesday, July 18, 2006 8:00 PM
To: Lelio Fulgenzi
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] live updates on subscriber - anyone tried it?

 

My question, to which I dont have an answer but i'm sure someone else on
the list does: is there any ramifications to running different OS levels
across your cluster during your upgrade process (assuming several days
to update all the nodes in your systems then at 1 per day) 

Also, which server is your TFTP server, or do you have several. not sure
how much of the phones configurations they store incase they cant talk
to a service.

Personally, i'd be just waiting for the rest of the cluster to implode
that same day... murphies law and all that :) 

On 7/18/06, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

Just wondering if anyone has tried updating the O/S on a subscriber
during business hours, obviously after stopping the CallManager service
and forcing phones to register to another subscriber first. Our goal is
to try an minimize the amount of after hours work that is involved in
maintaining this new fancy system of ours. 

 

Ideally, we'd see the following happening:

*	stop callmanager services and have phones register to another
subscriber during a short maintenance window
*	update O/S during the day
*	start callmanager services during a short maintenance window

Some questions:

*	are there any other services we should stop to make this as
transparent as possible?
*	does the Maximum Phone Fallback Queue Depth service parameter
help in any way in getting phones to register quicker on the next
callmanager in line?

Any comments would be extremely welcome.

 

------------------------------------------------------------------------
--------
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"I can eat fifty eggs." "Nobody can eat fifty eggs."


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Ed Leatherman
IP Telephony Coordinator
West Virginia University
Telecommunications and Network Operations 




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