Why does the server hang while starting up or the "csdb recover" hang when it is run?

Question

Sometimes after iPlanet Calendar Server crashes, the server hangs during
startup or the csdb
utility hangs when I execute the recover
command.
<P>
One possible solution is to delete all of the .share
files in the same directory as the
Calendar Server database. In most cases, the server will successfully start up
again.

Answer 1

When you start up in Safe Mode various things aren't loaded at startup, Bob.
Have a thinbk about which of the following may be involved in your own case:
It forces a directory check of the startup volume.
It loads only required kernel extensions (some of the items in /System/Library/Extensions).
It runs only Apple-installed startup items (some of the items in /Library/StartupItems and /System/Library/StartupItems - and different than login items).
Mac OS X 10.4 Tiger only: It disables all fonts other than those in /System/Library/Fonts .
Mac OS X 10.4 Tiger only: It moves to the Trash all font caches normally stored in /Library/Caches/com.apple.ATS/(uid)/ , where (uid) is a user ID number such as 501.
Mac OS X 10.4 Tiger only: It disables any Login Items.
(from http://docs.info.apple.com/article.html?artnum=107392)
Have a look at http://docs.info.apple.com/article.html?artnum=106464 for some more possibilities.
You may find it worth while using System Prefernces/Accounts to creat a new admin user account and see if the problem persists with it. THis may help you narrow down the problem further.
Cheers
Rod