8.1 Server Edition Upgrade to 9.1 Select

[gntsfan8690]

Hi all. Planning out an upgrade for a customer who is on 8.1 for Server Edition, 8.1.91 to be exact, with 31 nodes (29 are 500's). They will be migrating over to 9.1 Select, and we'll be replacing their existing DL 360's with the R620's. While I probably should be concerned, the change to the new servers is not what has me worried most. It's the need to upgrade all these 500v2's to 9.1, before we onboard them to the new Select Edition servers. I think at least half of these of these are going to be between PCS 11 and PCS 14.

Because of time constraints, we're going to upgrade the existing DL360 servers to 9.1 with the control units for phase 1, then days later remove all control units from the solution and join them to the pre-prepped R620 servers. Customer is willing to deploy 4 windows machines in their data center so we can run upgrades from each for 3 control units at a time using Manager. Thankfully, all the remote locations link back over fiber. That said, with the control units being 8.1.91, should i feel ok going straight to 9.1 with these control units, or should we step-upgrade them all using bins for 9.0.8 or 9.0.9 first, then run full upgrade to include sending files to the SD cards, for 9.1? I know the 9.1 tech bulletins say 8.1.65 and above on PCS 14 or lower control units will be ok to go to 9.1 without a step to. However, I've found PCS 15 control units lock up with 9.1 on initial boot up. Needless to say, confidence in Avaya documentation is not exactly high either.

 

[derfloh]

I would try it with the smallest node to upgrade directly. According to the docs it should work well.

 

[amriddle01]

Also don't forget select needs different more expensive (bravo Avaya) for everything, they aren't standard licences