We added a new server in the mailcluster and let autorepair take care of the cluster symmetrie. For 30 minutes everything went wel, but....semaphores lockes occures.....till 15 minutes on database delays.
Looking at the storage, we detected that the DAOS volume was queuing till DISKQUEUE 5. Normally this in below 1 ( 0.01 - 0.5 )
The autorepair not only replicates the maildatabase, but is also copying all the NLO's. The NLO copy is a heavy load copy and kicks the destination storage down in performance.
After 30 minutes, Domino crashes and is not restarting.
Please let Domino handle slow storage. If the storage cannot handle the load, please ramp the load down till it can.