Recover from metadata loss by reloading the saved metadata using ccmdb load with the overwrite option. If the failure occurred in the file system, you can restore from the file system backup without restoring the metadata. Either of these partial restorations might leave the metadata and file system inconsistent. Use ccm fs_check to locate areas where these inconsistencies are serious.
For more about the command, see:
Windows: ccmdb load
UNIX on Informix®: ccmdb load
UNIX on Oracle: ccmdb load