Seagate ST3000DM008, Руководство по эксплуатации продукта

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Seagate BarraCuda Product Manual, Rev. D 12
www.seagate.com Drive Specifications
2.7 Start/stop times
Time-to-ready may be longer than normal if the drive power is removed without going through normal OS powerdown
procedures.
2.8 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. Refer to
Figure 1 on page 21
.
2.8.1 Power consumption
Power requirements for the drives are listed in
Table 2
and
Table 3
. Typical power measurements are based on an average
of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.
• Read/write power and current
Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-ms delay, then a
16-sector read followed by a 32-ms delay.
• Operating power and current
Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads)
and 20 percent drive idle mode.
• Idle mode power
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a random
track location.
• Standby mode
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/write elec-
tronics are in power-down mode.
3-disk
(3TB models)
2-disk
(2TB models)
1-disk
(1TB models)
1-disk
(500GB models)
Power-on to ready (in seconds)
15 (typical)
17 (max)
10 (typical)
12 (max)
8.5 (typical)
10 (max)
Power-on to ready (typical) <10
Standby to ready (in seconds)
15 (typical)
17 (max)
10 (typical)
12 (max)
8.5 (typical)
10 (max)
Ready to spindle stop (in seconds)
10 (typical)
11 (max)