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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
28 System Diagnostics