Maxtor D540X-4G - Manual (Page 17)

Product Description
Maxtor D540X-4G 2-5
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An integrated circuit mounted within the sealed head disk assembly (near the read/
write heads) provides up to eight head selection depending on the model. It also
provides read pre-amplification and write drive circuitry.
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Low mass, low force giant magneto-resistive read/write heads record data on 3.5-
inch diameter disks. Maxtor uses a sputtered thin film medium on all disks for
Maxtor hard drives.
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All Maxtor hard drives are assembled in a Class 100 controlled environment. Over
the life of the drive, a 0.1 micron filter and breather filter located within the sealed
head disk assembly (HDA) maintain a clean environment to the heads and disks.
Maxtor drives are designed to operate in a typical office environment with
minimum environmental control.
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The microprocessor controls the following functions for the drive electronics:
• Command execution
• Cache management
• Data correction and error recovery
• Diagnostic execution
• Data sequencing
• Head positioning (including error recovery)
• Host interface
• Index detection
• Spin speed control
• Seeks
• Servo
• SMART
• 48-bit addressing