When the ov database fills up the nrdirmap program will buffer the extra alarms into a /usr/nr/var/nrdirmap.buffer file. (The actual name may be a little different, but it is in the /usr/nr/var directory).
When the alarms are deleted from the database, nrdirmap will not immediately pull the buffered alarms from the buffer file.
Instead it will only read in the buffer file when ovw is stopped and restarted.
If this is causing you problems then there is a wokraround:
WARNING: Do not do not do this unless you are sure you don't want to see these alarms in the ov interface. If you are logging on the director then they should have been logged in the director log file, and you can still look at them in the log file after these steps.
When the database fills up go ahead and delete the alarms.
Stop the ovw
Go to /usr/nr/var
And delete all the nrdirmap buffer files (be sure that no ovw is still running)
Now restart ovw, and only brand new alarms should begin showing up
