When you select the Performance Test, DIAG requests the disk drive identifier and disk drive type.
Seek Test
This test checks the seek capability of the hard disk on the specified range of cylinders and heads. DIAG performs a series of sequential seeks followed by random seeks. It reports any errors found.
When you select Seek Test, DIAG requests the following hard disk parameters:
Disk drive identifier
Disk drive type
Start cylinder number
End cylinder number
Start head number
End head number
Read/Verify Test
This test checks the read and verify capability of the hard disk on the specified range of cylinders and heads. DIAG performs both sequential and random read and verify operations. It reports any errors found.
When you select Seek Test, DIAG requests the following hard disk parameters:
Disk drive identifier
Disk drive type
Start cylinder number
End cylinder number
Start head number
End head number