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Thanks Karen and Ahmed for your response :) <br>
I shall plan the downtime accordingly. Have a nice day <br>
<br>
On 4/10/2010 2:50 PM, Karen Cheng wrote:
<blockquote
cite="mid:AANLkTimxNwF84DgoSGW9-pvVwr3myW3XsnHuxQ5zSLrR@mail.gmail.com"
type="cite">Depends on how big your database is as well and the number
of subscribers in the cluster. As you have to wait for the pub to get
to a certain point before you can start the subs. It also depends on
whether you are going to do it during production hours as well as you
may want to turn on I/O throttling if you do so that it doesnt affect
normal operation.
<div><br>
</div>
<div>Mine took approximately 1 1/2hours after hours to get to that
point on the pub. Then about 1hour for each sub to finish. </div>
<div><br>
</div>
<div>Once done it took about 30mins to switch all 5 servers.</div>
<div><br>
</div>
<div>Phone firmware was all completed beforehand to reduce time and
issues. </div>
<div><br>
</div>
<div>If you have 5 servers like me then allow around 4hours in case
there are issues.</div>
<div><br>
</div>
<div>Rollback takes approximately 30mins.</div>
<div><br>
</div>
<div>Hope that helps. <br>
<div>
<div><br>
<div class="gmail_quote">On Sun, Oct 3, 2010 at 7:12 PM, Ahmed <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:ahmed.maher@connectps.com">ahmed.maher@connectps.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<p>server upgrade on about 2h30m , restart on 20-30 min, if phones
firmware upgrade will be done, depend on number of phones
<br>
</p>
<div>
<div class="h5">----- Original message -----
<br>
> Has anyone upgraded CUCM to version 7,1,5bSU2 restricted? I notice
the <br>
> upgrade image is about 3.4 GB and wondering how long would it take
to <br>
> upgrade this completely on MSC7835 publisher server (including
reboot <br>
> and getting all phones reregistered.
<br>
> Any feedback from experience user is appreciated. Thanks
<br>
> <br>
> Denny
<br>
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