Product data

System Service Aids
If the 2104 is configured to the using system, service aids are available on that using
system to help you service the 2104. This section briefly describes some of those aids,
and tells how to use them. More details are given in the service information for the
using system.
The service aids that are described here are:
v Format Media
v Certify Media
v SCSI Device Identification and Removal
v Download Microcode
Format Media
Attention: The Format Media service aid destroys all data on the disk.
To run this service aid:
1. Install the disk drive module (if not already installed) into the 2104.
2. Ensure that power is present in the 2104.
3. Go to the using system, select Diagnostic Operating Instructions, and follow the
instructions to select the Function Selection menu.
4. Select Task Selection.
5. Select Format Media, and follow the instructions given.
Note: You cannot start the Format Media service aid if I/O operations are running
on the disk drive.
Attention: Formatting the wrong disk drive might destroy valuable data.
If you are not sure about the location code for the disk-drive module that you want
to format, see “Location Code Format” on page 133 for an explanation of the codes.
The Format Media service aid can take up to 15 minutes to run. If it completes
successfully, run the Certify Media service aid before the disk drive module is used.
Certify Media
The Certify Media service aid checks the disk for defective sectors. Before running
Certify Media, ensure that the diagnostics can run in System Verification mode without
errors to the disk drive module.
To run this service aid:
1. Go to the using system, select Diagnostic Operating Instructions, and follow the
instructions to select the Function Selection menu.
2. Select Task Selection.
3. Select Certify Media, and follow the instructions given.
134 2104 Service Guide