How to use the Work with Diskette Data Recovery option

Use the recover diskette data option to correct diskette problems.

1. Select the Work with diskette data recovery option on the System Service Tools (SST) display. The Work with Diskette Data Recovery display appears.

                           Work with Diskette Data Recovery
    
   Warning:  Work with Diskette Data Recovery should only be used when
   directed to by your service representative.
    
   Type option, press Enter.
   2=Alter diskette data      3=Read data from diskette
   4=Write data to diskette   5=Display diskette data    6=Print reports
    
   Opt     Device
   _      DKT01
   _      DKT02
   _      DKT03
   _      DKT04
   _      DKT05
   _      DKT06
   _      DKT07
   _      DKT08
   _      QDKT
    
    
    
    
   F3=Exit   F12=Cancel
    

2. Insert a diskette with read errors into the diskette unit with which you want to work.
3. Type a 3 in the Opt field next to the diskette unit in which you inserted the diskette and press the Enter key. Selecting the read option moves the contents of the diskette to a system space object where you can display or change them.
4. After the diskette is read into the system space object, select the Print reports option on the Work with Diskette Data Recovery display to print the contents of the diskette. This helps you find the failing sectors and the address of the system space object where you can change the contents of the diskette.
5. Select a diskette summary report. Print the summary reports in any combination by typing a 6 in front of the summary report you want and pressing Enter.
   Note: The type of diskette you are working with determines the type of summary report you want to print. All diskettes have volume headers and data set headers; therefore, you might want summary reports for these areas. If you find read errors, you should look at the failing sector summary. For diskettes that are used in save and restore operations, use the load and dump object dump descriptor summary.
6. If you want to print the sector range report, specify the start and end sector address for the sector range. If you do not specify a sector address, no sectors will print in the print range sector area of the report.
7. To display the contents of the diskette, select the Display diskette data option on the Work with Diskette Data Recovery display. To change the failing sectors, select the Alter diskette data option on the Work with Diskette Data Recovery display.
8. Exchange the diskette that contains CRC errors with one of the same type and format.
9. Select the Write data to diskette option on the Work with Diskette Data Recovery display to write the changed data to the new diskette.

   This ends the procedure.