Seagate Sky Hawk 8TB Surveillance Hard Drive (3.5″)

Description

Drive specification: ST8000VX004
Formatted (512 bytes/sector)#: 8TB
Heads: 10
Discs: 5
Bytes per logical sector: 512
Bytes per physical sector: 4096
Recording density, KBPI (Kb/in max): 2509
Track density, KTPI (tracks/in, 0 skew): 371
Areal density, (Gb/in2, @ 0 skew mid-disk): 930
Spindle speed (RPM): 7200
Internal data transfer rate (Mb/s max): 2850
Sustained data transfer rate OD (MiB/s max): 200 (210 MB/s max)
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)
Weight: (maximum): 716g (1.579 lb)
Average latency: 4.16ms
Power-on to ready (sec) (typ/max): 23/30
Standby to ready (sec) (typ/max) 23/30
Startup current (typical) 12V (peak) 1.8A
Voltage tolerance (including noise) 5V +10/-5%
12V ±10%
Non-Operating temperature -40° to 70°C (Ambient Temperature, see sections 2.6 and 2.11)
Operating temperature 5°C
Operating temperature 70°C
Temperature gradient (°C per hour max) 20°C (operating)
30°C (nonoperating)
Relative humidity 5% to 95% (operating)
5% to 95% (nonoperating)
Relative humidity gradient: 30% per hour max
Altitude, operating: -304.8 m to 3,048 m
-1000 ft to 10,000+ ft)
Altitude, nonoperating: -304.8 m to 12,192 m (-1000 ft to 40,000+ ft)
Operational Shock (max at 2 ms – typical): Read 70 Gs / Write 40 Gs
Non-Operational Shock (max at 2 ms – typical): 300 Gs
Vibration, operating: 5-22 Hz: 0.25 Gs,
Limited displacement:
– 22–350 Hz: 0.50 Gs
– 350–500 Hz: 0.25 Gs

Operation Rotational vibration: 20-1500Hz: 12.5 rads/s²
Vibration, nonoperating: 10-500 Hz: 5.0 Grms ref
Drive acoustics, sound power (bels): Idle
– 2.8 (typical)
– 3.0 (max)
– During periods of drive idle, some offline activity may occur according to the
Smart specification, which may increase acoustic and power to operational levels.
– The performance seeks 3.2 (typical): 3.4 (max)
– Nonrecoverable read errors: 1 sector per 1015 bits read
– Annualized Failure Rate (AFR): 0.87% based on 8760 POH
– Maximum Rated Workload: Maximum rate of – Workloads exceeding the annualized rate may degrade the drive MTBF and impact
product reliability.
– The Annualized Workload Rate is in units of TB per year or TB per 8760 power on
hours. Workload Rate = TB transferred x (8760 / recorded power-on hours).