User Manual
Table Of Contents
- SATA Product Manual
- Seagate® Technology Support Services
- 1.0 Introduction
- 2.0 Drive Specifications
- 2.1 Specification summary tables
- 2.2 Formatted capacity
- 2.3 Default logical geometry
- 2.4 Seek time
- 2.5 Start/stop times
- 2.6 Power specifications
- 2.7 Environmental specifications
- 2.8 Acoustics
- 2.9 Electromagnetic immunity
- 2.10 Reliability - Mean Time Between Failure
- 2.11 Warranty
- 2.12 Agency and Safety Certifications
- 2.12.1 Safety certification
- 2.12.2 Electromagnetic compatibility
- 2.12.3 Electromagnetic compliance
- 2.12.4 European Union (EU) CE Marking Requirements
- 2.12.5 Australian RCM Compliance Mark
- 2.12.6 Canada ICES-003
- 2.12.7 South Korean KC Certification Mark
- 2.12.8 Morocco Commodity Mark
- 2.12.9 Taiwanese BSMI
- 2.12.10 FCC verification
- 2.13 Environmental protection
- 2.14 Corrosive environment
- 3.0 Configuring and Mounting the Drive
- 4.0 SATA Interface
Seagate SkyHawk Product Manual, Rev. L 18
www.seagate.com Drive Specifications
2.7.7 Vibration
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive mounting
screws. Vibration may be applied in the X, Y or Z axis. Throughput may vary if improperly mounted.
2.7.7.1 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified in this document
are specified below.
2.7.7.2 Non-operating vibration
The maximum non-operating vibration levels that the drive may experience without incurring physical damage or degradation in
performance when subsequently put into operation are specified below.
2.8 Acoustics
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All measurements are consistent
with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For
all tests, the drive is oriented with the cover facing upward.
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.
2.8.1 Test for Prominent Discrete Tones (PDTs)
Seagate follows the ECMA-74 standards for measurement and identification of PDTs. An exception to this process is the use of the
absolute threshold of hearing. Seagate uses this threshold curve (originated in ISO 389-7) to discern tone audibility and to
compensate for the inaudible components of sound prior to computation of tone ratios according to Annex D of the ECMA-74
standards.
2Hz to 22Hz 0.25 Gs (Limited displacement)
22Hz to 350Hz 0.50 Gs
350Hz to 500Hz 0.25 Gs
5Hz to 22Hz 3.0 Gs (Limited displacement)
22Hz to 350Hz 3.0 Gs
350Hz to 500Hz 3.0 Gs
Note
For seek mode tests, the drive is placed in seek mode only.
The number of seeks per second is defined by the following equation:
(Number of seeks per second = 0.4 / (average latency + average access time
Table 7 Fluid Dynamic Bearing (FDB) motor acoustics
Idle* Seek
1TB & 2TB models
1.9 bels (typ)
2.0 bels (max)
2.1 bels (typ)
2.2 bels (max)
3TB & 4TB models
2.3 bels (typical)
2.4 bels (max)
2.5 bels (typical)
2.6 bels (max)
6TB & 8TB models
2.7 bels (typical)
2.8 bels (max)
2.8 bels (typical)
2.9 bels (max)