IBM SY44-5902-05 manual How to use the Work with Diskette Data Recovery option

The sectors that found read (or CRC feedback response code) errors supply this report after you select the Read data from diskette option. The sectors are formatted to provide the sector address (CCHRR–cylinder, head, record), the data set identifier, the hexadecimal data offset into the sector, and the sector contents. Because the data CRC can be anywhere in the failing sector, the failing sector report shows where to place the failing sector in its correct context.

vSector range report

This report comes from the sectors in the sector range you specify. Each sector is formatted to contain the sector address (CCHRR), data set identification, load and dump object type, subtype, and object name (if suitable). The space object dumps the sector by virtual address in a standard hexadecimal and EBCDIC format. You must enter a starting and ending sector address to print a sector range report.

How to use the Work with Diskette Data Recovery option:

1.Select the Work with diskette data recovery option on the System Service Tools (SST) display. The Work with Diskette Data Recovery display appears. This display shows the diskette units with which you can work.

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 the Enter key.

Note: The type of diskette you are working with determines the type of summary report you want to print. All diskettes have volume headers

288Service Functions V5R2