looking for a way to retrieve data without zimbra running

[p3x888]

Specifically, calendar data. I had a problem with another server which has already been replaced, but I still need to get some calendar entries off it.

The problem is ldap on the old server is failing to start for mysterious reasons (which are beyond the scope of this post) and thus I can't access the web interface to pull the ICS files. Does anyone know where calendar entries are stored within Zimbra? Are they in berkeleyDB files, or elsewhere? And if so, can they be retrieved without Zimbra actually running?