Conducted noise. Seagate ST1000VNZ02 IronWolf 1TB, ST1000VN002 IronWolf 1TB, ST3000VN006 IronWolf 3TB, ST6000VN001 IronWolf 6TB, ST4000VN006 IronWolf 4TB, ST3000VN007 IronWolf 3TB, ST2000VN004 IronWolf 2TB, ST4000VN008 IronWolf 4TB

www.seagate.com

Drive Specifications

2.5.2 Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak sine-wave injected noise at up to

10MHz.

• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak sine-wave injected noise at up to

10MHz.

Note Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.

2.5.3 Voltage tolerance

Voltage tolerance (including noise):

• 5V ±5%

• 12V ±10%

2.5.4 Power-management modes

The drive provides programmable power management to provide greater energy efficiency. In most systems, users can control power management through the system setup program. The drive features the following power-management modes:

Power modes

Active

Idle, Performance

Idle, Active

Idle, Low Power

Standby

Sleep

Heads

Tracking

Spindle

Rotating

Tracking

Floating

Rotating

Rotating

Parked Rotating

Parked Stopped

Parked Stopped

Electronics

Full Power

Full Power

Partial Power

Partial Power

Low Power

• Active mode

The drive is in Active mode during the read/write and seek operations.

• Idle mode

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disk access is necessary.

• Standby mode

The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a specifiable length of time. The standby timer delay is established using a Standby or Idle command. In Standby mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all commands and returns to Active mode any time disk access is necessary.

• Sleep mode

The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive buffer is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a Hard Reset or Soft Reset from the host.

After receiving a reset, the drive exits Sleep mode and enters Standby mode with all current translation parameters intact.

• Idle and Standby timers

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive accepts all commands and returns to Active mode when disk access is necessary.

Seagate IronWolf Product Manual, Rev. R 17