Seagate NAS HDD and NAS +SRS HDD Product Manual, Rev. E
8
Drive Specifications
*One GB equals one billion bytes and 1TB equals one trillion bytes when referring to hard drive capacity. Accessible capacity may vary depending
on operating environment and formatting.
* *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.
*** All specifications above are based on native configurations.
†
Seagate does not recommend operating at sustained case temperatures above 60C.
Operating at higher temperatures will reduce useful life of the product.
Temperature gradient
20°C per hour max (operating)
30°C per hour max (non operating)
Relative humidity
5% to 90% (operating)
5% to 95% (non-operating)
Relative humidity gradient (max)
30% per hour
Wet bulb temperature (max)
26°C max (operating)
29°C max (nonoperating)
Altitude, operating
–304.8m to 3048m
(–1000 ft to 10,000+ ft)
Altitude, non-operating
(below mean sea level, max)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
Operational Shock (max)
80 Gs at 2ms
Non-Operational Shock (max)
300 Gs at 2ms
Vibration, operating
2Hz to 22Hz: 0.25 Gs (Limited displacement)
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
Vibration, non-operating
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
Drive acoustics, sound power
Idle**
2.3 bels (typical)
2.5 bels (max)
Seek
2.4 bels (typical)
2.5 bels (max)
Non-recoverable read errors
1 per 10
14
bits read
Mean Time Between Failure (MTBF)
1,000,000 hrs
Rated Workload
Average annualized workload rating: <180 TB/year.
The AFR specification for the product assumes the I/O workload does not exceed
the average annualized workload rate limit of 180 TB/year. Workloads exceeding
the annualized rate may degrade the product AFR and impact reliability as
experienced by the particular application. The average annualized workload rate
limit is in units of TB per calendar year.
Warranty
To determine the warranty for a specific drive, use a web browser to access the
following web page:
http://www.seagate.com/support/warranty-and-replacements/
From this page, click on the “Is my Drive under Warranty” link. Users will be asked to
provide the drive serial number, model number (or part number) and country of
purchase. The system will display the warranty information for the drive.
Load/Unload cycles (25°C, 50% rel. humidity)
600,000
Supports Hotplug operation per the
Serial ATA Revision 3.0 specification
Yes
Table 1
Drive specifications summary for NAS HDD +SRS models (continued)
Drive Specification
ST4000VX000 and ST4000VX002
ST3000VX002
