The database is locked in normal operations, but the ACE server lost connection to it, and we can neither stop nor start nor use the database.  Database could have been shut down unexpectedly, or without proper shutdown. need to;

1. Uncheck the [ ] start automatically under the RSA ACE server in the Windows Control Panel  or RSA Control Panel

2. reboot, so that all processes are stopped, and RSA does not start automatically

3. delete the lock files in C:\ace\data sdserv.lk and sdlog.lk

4. Start the RSA ACE server in the Windows Control Panel

5. test Database Administration Host mode and remote admin and other connections

6. When everything checks out, re-check the [ ] start automatically under the RSA ACE server in the Windows or RSA Control Panel