Seagate ironwolf PRO ST4000NE0025, Product Manual

Page: 6 / 37

Seagate IronWolf Pro v6 Serial ATA Product Manual, Rev. B (Draft 4) 5
2.0 Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the
phrases the drive and this drive are used throughout this manual to indicate the following drive models:
2.1 Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measurement or definition, see the
appropriate section of this manual.
Table 1 Drive specifications summary
512E models 512N model
ST8000NE0021 ST6000NE0021 ST4000NE0025 ST2000NE0035
Drive specification
ST8000NE0021 ST6000NE0021 ST4000NE0025 ST2000NE0035
Formatted (512 bytes/sector)* 8TB 6TB 4TB 2TB
Guaranteed sectors (see Section 2.2 )
Heads 12 7 4
Discs 6 4 2
Bytes per logical sector 512E 512N
Bytes per physical sector 4096 512
Recording density, KBPI (Kb/in max) 2018
1936
Track density, KTPI (ktracks/in avg.) 369
330
Areal density, (Gb/in
2
avg) 732
651
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2396 2585
Maximum Sustained data transfer rate OD 214 MB/s 195 MB/s
I/O data-transfer rate (MB/s max) 600
ATA data-transfer modes supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer 256MB (262,144KB) 128MB (129,536KB)
Weight: (maximum) 780g (1.72 lb) 680g (1.50 lb) 550g (1.21 lb)
Average latency 4.16ms
Power-on to ready (sec) (typ/max) 23/30 17
Standby to ready (sec) (typ/max) 23/30 17
Startup current (typical) 12V (peak) 2.0A
Voltage tolerance (including noise)
5V +10/-5%
12V ±10%
Non-Operating ambient temperature (°C) –40° to 70°
Operating ambient temperature (min °C) 5°
Operating temperature (Drive case max °C) 60°
†
Temperature gradient
(°C per hour max)
20°C (operating)
30°C (non-operating)
Relative humidity
5% to 95% (operating)
5% to 95% (non-operating)
Relative humidity gradient 30% per hour max
Altitude, operating
–304.8 m to 3,048 m
(–1000 ft to 10,000+ ft)
Altitude, non-operating
(below mean sea level, max)
–304.8 m to 12,192 m
(–1000 ft to 40,000+ ft)
Operational Shock (max at 2 ms) Read 70 Gs / Write 40 Gs
Non-Operational Shock (max at 2 ms) 250 Gs 300 Gs