Wednesday, January 14, 2009

Multiple Domino instances on a single machine.

Although it is completely unsupported, I have a requirement to have two Lotus Domino server installed on my Thinkpad at the same time. One is my super stable environment for performing standard cusotomer demonstrations which includes Domino, Quickr, Traveler, iNotes and Sametime. This is currently using Domino 8.0.2. Then I have a more experimental server which is running the latest build of the code I can get my hands on which I use for playing with the new toys like DAOS, Xpages, ID Vault, DCT etc. The problem I am having is that when I now upgrade either of the servers (they are just installed locally on my C:\ drive) it causes the other to show the following error when started:

This is a known issues and you can see the Technote here. The problem is easy enough to fix, just reinstall the code and the server is fine again. The problem is that in fixing one you have knocked out the other. This has only just started happening to me in the last month or so - prior to that I could have as many servers as I like installed and they would all work fine independently of each other. I am pretty much sure that the problem relates to how Domino reads or writes to the windows registry.

A similar scenario happens with the Notes client. IBM do not support having multiple versions installed on a machine at the same time. But clever folks in the Lotus community have found ways to get it working. The best description I have found is this one from Thomas Bahn which even allows the versions to be running simultaneously. So my question to the community is has anyone found a similar workaround for having multiple versions of Domino installed on a Windows laptop (not running simultaneously of course!).

p.s. I know I could use VMware workstation and the problem goes away but I hate using VM's for customer demos. I don't like introducing additional moving parts.


Anonymous said...

I've seen the same thing when installing multiple instances of Domino on a Windows based server box as well. In this case, the only way I can assume is through a partition server install.

In my case I had previously been able to install any number of Domino servers on my laptop but with ND8 you can only run one instance unless installed as a partition.

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gamefan12 said...

I think this works so well when you run off of two servers. So many great benefits that you will get from this. Great idea on offering this. Keep up the good work.