Seagate NAS HDD Product Manual, Rev. F
9
www.seagate.com
Drive Specifications
Table 2
Drive specifications summary for 4TB, 3TB and 2TB models
Drive Specification*
ST4000VN000
ST3000VN000
ST2000VN000
ST1000VN000
Formatted capacity (512 bytes/sector)**
4000GB (4TB)
3000GB (3TB)
2000GB (2TB)
1000GB (1TB)
Guaranteed sectors
7,814,037,168
5,860,533,168
3,907,029,168
1,953,525,168
Heads
8
4 2
Disks
4
2 1
Bytes per sector
(4K physical emulated at 512-byte sectors)
4096
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density (max)
1807kFCI
1550kFCI
1807kFCI
Track density (avg)
340ktracks/in
352ktracks/in
Areal density (avg)
625Gb/in
2
536Gb/in
2
625Gfc/in2
Internal data transfer rate (max)
1813Mb/s
2147Mb/s
Maximum sustained data rate, OD read (MB/s)
180MB/s
ATA data-transfer modes supported
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
I/O data-transfer rate (max)
600MB/s
Cache buffer
64MB
Height (max)
26.1mm / 1.028 in
20.20mm/0.795 in
Width (max)
101.6mm /4.010 in
Length (max)
146.99mm / 5.787 in
Weight (typical)
610g / 1.345 lb
535g / 1.18 lb
415g/0.915 lb
Average latency
5.1ms
Power-on to ready (max)
<17.0s
<6.0s
Standby to ready (max)
<17.0s
<6.0s
Average seek, read (typical)
Average seek, write (typical)
<12.0ms
<12.0ms
<8.5ms
<19.5ms
Startup current (typical) 12V
2.0A
1.2A
Voltage tolerance (including noise)
5V: ±5%
12V: ±10%
Non-Operating (Ambient °C)
-40 to 70
Operating temperature (drive case min °C)
0
Operating temperature (drive case max °C)
70
†
Temperature gradient
20°C per hour max (operating)
30°C per hour max (nonoperating)
Relative humidity
5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient (max)
30% per hour
Wet bulb temperature (max)
37.7°C max (operating)
40.0°C max (nonoperating)
Altitude, operating
–304m to 3048m
(–1000 ft to 10,000 ft)
Altitude, non-operating
(below mean sea level, max)
–304m to12,192m
(–1000ft to 40,000+ ft)
Operational Shock (max)
80 Gs at 2ms
Non-Operational Shock (max)
300 Gs at 2ms
