indicates that the disk needs to be backed up and replaced. Formatting the disk does not
improve the availability of spare sectors.
Diskette Media Service Aid
This service aid provides a way to verify the data written on a diskette. When this service
aid is selected, a menu asks you to select the type of diskette being verified. The program
then reads all of the ID and data fields on the diskette one time and displays the total
number of bad sectors found. Diskette format support was added in version 4.2.
Prior to version 4.2 the Diskette Media Service Aid was entered via the Diskette Media
selection from the Service Aid Selection Menu. At version 4.2 and later the Diskette Media
Service Aid is entered via the Format Media or Certify Media options from the Task Selection
Display/Alter Bootlist Service Aid
This service aid allows the bootlists to be displayed, altered, or erased.
The system attempts to perform an IPL from the first device in the list. If the device is not a
valid IPL device or if the IPL fails, the system proceeds in turn to the other devices in the list
to attempt an IPL.
Display or Change Configuration or Vital Product Data (VPD)
This service aid allows you to display and change configuration data and vital product data
Prior to version 4.2 this service aid was entered via the Service Aid Selection Menu. From
version 4.2 on, this service aid is entered via the Task Selection Menu.
The following are the task selections which appear on the Task Selection Menu:
Display Configuration and Resource List
Display Hardware Vital Product Data
Change Hardware Vital Product Data
Add or Delete Drawer configuration
Display Vital Product Data (VPD) Service Aid and Display Hardware Vital
Product Data Task
This service aid displays all installed resources along with any VPD for those resources. Use
this service aid when you want to look at the VPD for a specific resource.
Display Software Product Data Pre-version 4.2
This service aid displays information about the installed software.
Using the Service Aids