Lost OD Users and Disk Util Crashing

Question

Community,
My Lion Server is having some trouble! It seems that LDAP is not running, and while I've tried a few terminal commands to reboot the service, nothing seems to have worked.
Also, the user profiles on the server have just vanished. I believe this would be a result of the local OD not running? Afterall, if its considered 'offline', I'd expect the Server Admin and Workgroup Manager to not display the users.
One other problem - An external disk was becoming pretty unresponsive from my Lion Server, so I moved it and plugged it into another computer, where it seemed to run just fine. Resetting the PRAM on the Mac Server seemed to alleviate some troubles, but the disk was still acting up.
I erased and reformatted the disk to 1 partition, but now I cannot re-format the partition scheme I'd like to use. Now, my Disk Utility crashes whenever I try to select the 'Partition' tab an a newly reformatted G-RAID 2 TB disk, using Mac, Journaled, Formatting.
Anyone have some pointers on how to continue troubleshooting these two issues?
Thanks,
C

Answer 1

yeah, now we have the answer to your question, I didnt have time to include this tactic in my previous post:
a. load Tiger DVD client disk into Mac mini hosting Tiger Server 10.4.5
b. launch Disk Utility
c. click Verify Perms
d. DU finds various problems, finishes stating it repaired them
e. click Verify Perms again
f. DU finds various problems, finishes stating it repaired them
g. click Verify Perms again
h. DU find no problems, finishes stating it repaired them
So, restart this Tiger Server with its own hard drive, then run DU from that hard drive: same error message once again
Perhaps this is a benign error ?