Unity Connection 12.5(1) to 15.0 upgrade

[Bill]

I am planning on upgrading Unity Connection from 12.5(1) to 15.
Specifically from 12.5.1.19017-4 to 15.0.1.11900-14

I am thinking an in-place upgrade.
But first I need to increase the RAM.
Disk and CPU are ok.

Just wondering if any caveats I can expect?
I will run the pre-upgrade check (have not done that yet)

Thanks

[Roger Kallberg]

Not on the specifics of what you asked about. Running the pre-check will give you more information. You should run that as soon as you can to find out if you need to do anything else than adding more RAM.

[GursimratPalSinghKhaira3002]

Hi Bill,
I know this is very late reply but for people visiting this blog, if you upgrade the hard drive on the OVA, the upgrade fails with the error

only way is to redeploy the OVA with correct hardware and use PCD or data migration or DRS to same version and then upgrade.