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

[Anthony Holloway]

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!
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> Exact Versions are:
>
> 8.5 SU2 for CUCM/UCXN
>
> 8.5 FCS for UCCX
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> Each  is a pair of servers.
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> 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.
>
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> 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.
>
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> 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!)
>
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> For CUCM/UCXN I need to go to 8.6 anything and then I can go to 11.5 and
> then to 12x
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> 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.
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> 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.
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>
> 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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