DISK TESTS
The Disk Tests allow the operator-to verify the functions.of the Hard Disk Drive Assembly.
Highlight the test by using any joystick to select the option; then pressany control panel buttonto activate.
DISK TESTS SUB MENU
Disk Information
This test routine verifies the interface between the CPU Board Assembly and the Hard Disk Drive itself.
The processor requests disk information. Data cannot be retrieved successfully if there is a problem.
Sequential Disk Read
This routine tries to access every bit of data in the order it is stored directly on the disk. The hard disk
drive media may be defective if this routine cannot be completed successfully.
Sequential Cache Read
This routine tries to access every bit of data in the order it is stored in the temporary disk memory cache.
There may be a fault in the memory circuits if this test is not successful.
Random Disk Read
This routine tries to access every bit of data in no particular order directly from the disk. This test may
detect problems with ability to position the drive heads accurately over the requested data.
Random Cache Read
This routine tries to access every bit of data in no particular order from the temporary disk memory cache.
There may be a fault in the memory circuits if this test is not successful.
Data Integrity Test
This test will analyze the data on the disk drive. This test determines if corrupted data is on the disk. Bad
data can cause the program to falter even though the hard disk drive is operating correctly.
File System Check
This routine will perform a file-by-file check of the data stored on the hard disk drive. If errors are detected
the system tries to fix them, then checks the files again.
Surface Scan
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The magnetic material on the disk can become damaged, causing data to be unreadable. This routine
locates unusable areas on the disk and marks them for future reference.
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