Seagate NAS HDD Product Manual, Rev. F
7
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
Table 1
are for quick reference. For details on specification measurement or definition, refer to
the appropriate section of this manual.
ST8000VN0002
ST6000VN0021
ST4000VN000
ST3000VN000
ST2000VN000
ST1000VN000
Table 1
Drive specifications summary for 8TB and 6TB models
Drive Specification*
ST8000VN0002
ST6000VN0021
Formatted capacity (512 bytes/sector)**
8000GB (8TB)
6000GB (6TB)
Guaranteed sectors
15,628,053,168
11,721,045,168
Heads
12
Disks
6
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)
2241KBPI
1981kFCI
Track density (avg)
362KTPI
320KTPI
Areal density (avg)
1333Gb/in2
633Gb/in2
Internal data transfer rate (max)
2546Mb/s
1981Mb/s
Maximum sustained data rate, OD read (MB/s)
230MB/s
226MB/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
256MB
128MB
Height (max)
26.1mm / 1.028 in
Width (max)
101.6mm /4.010 in
Length (max)
146.99mm / 5.787 in
Weight (typical)
780g / 1.72 lb
Average latency
4.0ms
Average seek, read (typical)
Average seek, write (typical)
<8.5ms
<9.5ms
Startup current (typical) 12V
2.0A
Voltage tolerance (including noise)
5V: ±5%
12V: ±10%
Non-Operating (Ambient °C)
-40 to 70
Operating temperature (drive case min °C)
5
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
