Does anyone have suggestions/experience for the best way to move between EM servers?
We need to move in the region of 100k clients and 500+ relays from the existing 8.2 server to a new 9.0.835.0 server. This is to effect both a hardware and OS refresh and to bring the estate up to current version. We are not worried about migrating data, fixlets etc as the new server has a clean installation and we have exported/imported fixlets, tasks, groups etc from the existing server. Our current root server is bound to a CNAME.
Is it sufficient enough to update the CNAME so all clients and relays resolve the root server to the new 9.0 server which would then cause a client reset due to the lack of report sequence data for the client, or should we obtain a new masthead/license with a new hostname and use the masthead switch fixlet? We used this approach way back on 6.x when we moved from a test server to a production server but that was only dealing with 2000 clients and 1 or 2 relays. This may not be so suitable for current version and numbers of clients/relays.
I have done a similar action before but we did it in a two step process
Migrate to new server with same version
After a burn-in period, we then upgraded
For the migration, we were moving from a VM to physical. We were also keeping the same hostname as this was bound to the license (which is normally done). The basic steps were:
shutdown TEM services
Back up database and copy to new server
rename server old server and new server (to the old server name)
on new server, install MS SQL and import database
Install TEM
Now those are very high level, but we basically followed the steps in this link:
Thank you for the info Martin. Guess the advantange we have is not wanting to migrate the DB so may not have the issue with LDAP users. Will definatley keep that article bookmarked just in case.