Hi,
one additional question - after you corrected the lines manually - does the prolbem happens frequently again and the file is corrupted again?
Since when does this error orruc? Did you install a new database version -> Please check parameter hsitory for KernelVersion and does this fit to the errors which occur now?
Are you running the MaxDB on a UNIX SUN system?
There are known issues which happen on SUN and always the Comment column was affected.
When this happens at the same time the backup failed with the error messages like those:
Backup 1: Backupmedium #1 (/sapdb/C1T/PIPE/NSRC1T_01) mismatch: checked and expected type
KernelComm 6: Backup error occured, Error code 3700 "hostfile_error"
Unfortunately there is no fix for this error so far (PTS: 1241472).
But it would be interesting if you are also using SUN.
If you are a SAP customer I would ask for opening an error ticket in SAP support system on component BC-DB-SDB.
Regards, Christiane