Mobilink 12 to 17 upgrade process

[Former Member]

We are looking at performing the same upgrade from MobiLink 12 to 17. However the questions I have, is in regards to the MobiLink Synchronization tables.

As we will be running MobiLink 12 and MobiLink 17 services in parallel does 12 use 17 MobiLink Synchronization tables or does there need to be a completely new set of tables for 17?

Also just to confirm the MobiLink 12 and MobiLink 17 services are able to run on the SAME server in parallel; they just have to be using different ports, correct?

[Former Member]

No, Yes and Yes. And ... another thought.

No - the version 12 MobiLink server will not be able to use the version 17 MobiLink system objects.
Yes - you will need a separate set of those for the version 17 MobiLink server. You will need to use a different login (owner) and a new DSN for this.
Yes - you can often run both MobiLink servers connected to the same consolidated database. It is a pretty common situation and has sometimes been required to bridge a partial upgrade. Some combinations may not be fully tested but you can check out the tested configurations for version 17 here.

There may also be other strategies available depending upon how much backward compatability you need and for how long. You can also do this with 2 tiers of MobiLink synchronization. That configuration keeps your version 12 set-up exactly as is, but adds publications, MobiLink users and subscriptions to that consolidated database to make that into a remote to your new version 17 top tier.

[Former Member]

Thanks for the information. your answers says that both Mobilink servers can connect to the same consolidated database but can both Mobilink Services run on the same physical server (assuming they are listening on different ports and connecting to the database with different users)?

[Former Member]

Other than the competition for resources (memory, etc.) you can run the 2 MobiLink servers on the same system.

That means the hostname/IP-address can be the same but the different ports will need to be different for certain. Each MobiLink server will then just need to connect to the consolidated database using the user/login that is the owner of the matching version of the MobiLink tables, procedures, ... etc..