Seagate Elite 9, Руководство по эксплуатации продукта

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8 Elite 9 Product Manual, Rev. C
4.1 Performance
• Programmable multi-segmentable cache buffer
• 5,400 RPM spindle; average latency = 5.55 msec
• Command queuing of up to 64 commands
• Background processing of queue
• Supports start and stop commands
• Provides synchronized spindle capability
• Low audible noise for office environment
• Low power consumption
4.1.1 Reliability
• 500,000 hour MTBF
• Adaptive seek velocity; improved seek performance
• LSI circuitry
• Balanced low-mass rotary voice-coil actuator
4.2 Unformatted and formatted capacities
Standard OEM models are formatted to have 512-byte sectors.
Elite 9 drives have one (1) spare cylinder per unit and 9 spare sectors per
cylinder. You may select the number of spare sectors per cylinder to meet
your specific needs.
Formatted Unformatted
9,090 Mbytes 10,800 Mbytes
Users having the necessary equipment may modify the data block size
before issuing a format command to obtain different formatted capacities.
User-available capacity also depends on the spare reallocation scheme
selected. See the Mode Select command and the Format command in the
SCSI-2 Interface Product Manual (part number 77738479).
4.3 Options
The following options are incorporated at the time of production or are
available separately. All kits may be installed in the field.
• Front panel
The standard front panel is black plastic; you may order other colors. The
panel has a single rectangular green LED indicator lens that, when
glowing, indicates the drive is selected.
Front panel kit with green lens, part number 70553702
Front panel kit with red lens, part number 705537012
• Two pin shunt jumpers, 2 mm, part number 97630051
• External terminator, single-ended, shielded, part number 15387797
• External terminator, single-ended, unshielded, part number 15387807
• Internal terminator, differential, part number 15479501
• Single-unit shipping pack
The drive is shipped in bulk packaging to provide maximum protection
against transit damage. Units shipped individually require additional
protection as provided by the single-unit shipping pack. Users planning
single-unit distribution should specify this option.