[cisco-voip] Migration from CUCM/UCXN/UCCX 8.5 to 12.5

[Anthony Holloway]

Another thing, CUCM 12.5 specific, Cisco wants all of us to run through the
Collaboration Sizing Tool every time we upgrade to 12.5 now.

See slide 13
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2019/pdf/BRKUCC-2011.pdf

On Thu, May 28, 2020 at 1:08 PM Anthony Holloway <
avholloway+cisco-voip at gmail.com> wrote:

> Keep in mind that PCD network migrations, while awesome for CUCM, do not
> work for other products.
>
> Typically with a project like this, you'll likely have a different
> approach for each app, and not a one size fits all solution.
>
> With the app upgrades, you will also have to change OVA sizes (or want to
> in some cases), and at that point, it might be better to install fresh, and
> use tools like COBRAS, BAT, AXL, ADMIN API, stare & compare, etc. to get
> data exported/imported from old to new.
>
> Or like Kent said, tell yourself it's a toshiba system, and treat it like
> a greenfield.
>
> On Thu, May 28, 2020 at 11:26 AM Matthew Loraditch <
> MLoraditch at heliontechnologies.com> wrote:
>
>> Here’s a fun one. We have taken over support of these ancient servers
>> hosted on Esxi 4.1 on UCS-C200-M2s!
>>
>>
>>
>> Exact Versions are:
>>
>> 8.5 SU2 for CUCM/UCXN
>>
>> 8.5 FCS for UCCX
>>
>>
>>
>> Each  is a pair of servers.
>>
>>
>>
>> Have new M5s and flex licensing… need to get to 12.5..  8.5 docs are dead
>> for CUCM/UCXN and 8 and 9 docs are dead for UCCX. ISOs I may need are not
>> available publicly.
>>
>>
>>
>> Also fun wrinkle the new host are across the WAN and for many logistical
>> reasons are staying there. The migration to the new hosts will have to be
>> via DRS or maybe PCD somehow? Not sure if the bandwidth available to get
>> data across will be fast enough to finish in the allotted time period. My
>> plan was a change freeze window and copy/restore the backups and then
>> activate the new servers and move the subnet to the new location.
>>
>>
>>
>> As best I can tell I need to get UCCX to SU4 of 8.5.1 then I can go to
>> 10.6 SU3 and then to 12x (with the fun of two CAD upgrades and then a
>> migration to Finesse!)
>>
>>
>>
>> For CUCM/UCXN I need to go to 8.6 anything and then I can go to 11.5 and
>> then to 12x
>>
>>
>>
>> I think my plan is to do the upgrades to the interim versions on the old
>> hosts then migrate to the new and then finish the upgrades. The old hosts
>> will need ESXi upgrades to an interim version.
>>
>>
>>
>> Anyone have thoughts on what they would do here? This is partially
>> depending on TAC being able to provide me the ISOs I will need, but I
>> presume there is an archive.
>>
>>
>>
>> In theory some sort of PCD migration is also an option, but I’ve never
>> done one and not sure how it could handle the subnet situation that will
>> have to exist.
>>
>>
>>
>> Welcome to my fun life!
>>
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>>
>> Matthew Loraditch​
>> Sr. Network Engineer
>> p: *443.541.1518* <443.541.1518>
>> w: *www.heliontechnologies.com* <http://www.heliontechnologies.com/>  |
>> e: *MLoraditch at heliontechnologies.com*
>> <MLoraditch at heliontechnologies.com>
>> [image: Helion Technologies] <http://www.heliontechnologies.com/>
>> [image: Facebook] <https://facebook.com/heliontech>
>> [image: Twitter] <https://twitter.com/heliontech>
>> [image: LinkedIn] <https://www.linkedin.com/company/helion-technologies>
>> _______________________________________________
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>>
>
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