IBM SY44-5902-05 manual Work with Dedicated Service Tools environment

–The results of the Analyze disk unit surface option (under the Work with disk unit recovery option) show which pages have data check conditions. Use the Display/change page data option to assign those sectors to new locations on the disk.

–To inspect and change the 64 bytes of page header, if necessary.

–To inspect and change the 4096 bytes of page data, if necessary.

The Display/change page data option has the following functions:

–Reading data from a selected page.

–Displaying the data in hexadecimal and EBCDIC formats.

–Allowing the hexadecimal data to be changed and written to the page again.

–Displaying the 64-byte page header in formatted form.

–Allowing the 64-byte page header to be changed and written to the sector again.

–Allowing the sector to be assigned to a new location on the disk.

–Displaying the disk unit reference code after each operation. v Analyze disk unit surface

This option performs a read/verify operation on the selected units. Pages that report disk URCs indicating data check errors can be assigned to new locations on the disk using the Display/change data option. The results of the analysis can be displayed on the console.

Work with Dedicated Service Tools environment

Use this option to work with active service functions and system devices while you are in Dedicated Service Tools (DST). If you are logged on with service tools security authority, you can also change service tools user IDs and work with some system values.

The Work with Dedicated Service Tools Environment display includes the following options:

vActive service tools

vSystem devices

–Printers

-Select output printer

-Cancel printer output

-Cancel printer output and deallocate printer

–Tape devices

-Select tape

-Cancel tape operation and deallocate tape

–Optical devices

-Select optical device

-Cancel optical device operation and deallocate optical device

–Alternate installation device

–Console mode

vService tools user IDs

–Create

–Change password

–Delete

Chapter 1. Dedicated Service Tools (DST) 23