Good morning!

First off, I hope there's not an issue with asking Apple server-specific 
questions on this list. If that's an issue, I apologize, but this is somewhat 
documentation-related :)

What is the "preferred" method for migration of calendar data?

I have two use cases that I'm studying:

- Migration of users in an enterprise from local calendars or another server to 
a Snow or Lion calendar server

- Migration of users from Snow to Lion without using the upgrade installation 
(a migration installation instead)

In both cases, we've tried to use iCal to either back up a copy of the local 
client store to copy into the new server store. That generally works, but both 
calendar servers (Snow and Lion) will try to mail out new invitations. I've 
mitigated that before by disabling iMIP temporarily in serveradmin, which 
generally seems to work, but then there are some errors when the calendar 
server tries to resolve users on the invites:

HTTP/1.1: 500 Internal Server Error to operation 
CalDAVWriteEntityQueueableOperation

...after which you can revert to server or go offline. Revert to server's not a 
very good choice because it will revert to the non-existence of the item.

All in all, what is a good way to approach this migration? If you can provide 
some clues/pointers, I'm sure we can figure out the rest. This will be a very 
good migration document in the end, I'm sure. Unless I'm missing something, 
there's not a lot of information about this in the Lion server documentation.

--Jason

---
Jason Miller
jmil...@red-abstract.com



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