At the end of last year, the range of our devices was replenished with a new line, . These drives were designed to work in video surveillance systems with support for artificial intelligence. Today we want to tell you in detail about its flagship - the model Seagate ST16000VE000 c 16 TB of memory. Only one such specialized HDD can store a month of recordings from 15 surveillance cameras, recording video in Full HD resolution at 25 frames per second around the clock.
Just a decade ago, the circuit of the same 15 surveillance cameras was the level of a large industrial enterprise or a protected area of a court, government or some other institution of special importance. Today, 15 cameras may belong to a micro-business that controls a warehouse and office, a fitness center or a small store. That is, it is no longer a luxury, but a means of video recording, a utilitarian part of physical security. But there are no fewer problems: gigabytes of good quality video need to be recorded and stored somewhere, and this is also a key element of security - otherwise why all these cameras?
Appearance
In the appearance of hard drives, it is difficult to come up with something fundamentally new. The form factor of the device is 3.5”, the body is made of aluminum, the top cover is flat, with a large marking sticker:
Below is a no less flat black surface, a quarter of which is occupied by the external board of the device. There are also 4 mounting holes.
There is a welded seam around the entire perimeter, which ensures perfect tightness of the filling - it will not work to get inside at home. And there is no need, except perhaps out of curiosity, boredom or to get expensive souvenirs (although visually there are the same “pancakes” as in other discs).
There are three screw holes on each side - the drive can be installed in any basket, even in a short one.
At the request of workers (from to the previous review) we give more accurate dimensions:
On the front end there is a marking sticker with the serial number of the drive - so that you can easily find the desired drive in the NAS stack.
Using
If you have only one camera hanging somewhere in the corridor at home, then even in this case you will have to store the recorded video somewhere (we don’t consider cloud services in this case - video storage there is on the conscience of the owners).
To understand the scale, let's turn to the table, which shows the approximate size of 1 hour of video recording with a fixed bitrate (with a very rough comparison):
Video bitrate
Occupied space
96K (~video intercom)
42 MB
192K (~compressed video conferencing)
84 MB
448K (~YouTube 240p)
112 MB
768K (~YouTube 360p)
225 MB
1024K (~YouTube 480p)
450 MB
1536K (~VideoCD)
675 MB
2048K (~YouTube 720p)
900 MB
4096K (~YouTube 720p@60fps)
1.8 GB
8192K (~YouTube 1080p@60fps)
3.6 GB
16384K (~HDTV)
7.2 GB
It turns out that in the case of the mentioned camera, almost any drive is suitable, even for 500 GB - there will be enough space for almost a week of continuous recording in good quality (and if you write on the motion sensor, then for longer). And if you use even the simplest SkyHawk drive (8 TB), it will close the need for video storage for months or years.
But of course, when developing the SkyHawk series discs, we had in mind a slightly different video surveillance, on a larger scale. Entrances, shops, industries, factories, government agencies - all these (and many others) scenarios that use dozens or hundreds of high-definition cameras, with different settings and technologies. So that the video from them continuously goes through professional devices, recorded on multi-disk arrays and reliably stored for a long time. All this is the native element for SkyHawk.
Here, instead of an abstract table, it is better to use , which has more input settings and more accurate output. Just specify the desired parameters (number of cameras / quality of recording from them / number of hours of recording per day and days for storage / codec) and get the amount of data occupied:
So, moving the sliders, we find out that the hero of today's review (SkyHawk AI 16 TB) is enough to store video from 15 cameras for a month, which will record around the clock in FullHD quality at a frequency of 25 frames per second (consider cinema).
// (!)(!)(!) — exclamation points for self-placement in the previous sentence.
15 cameras is, for example, an apartment building, which has 7 cameras hanging on each of the 2 entrances - a completely secure perimeter with the ability to dive into the video archive for a month. SkyHawk AI is designed for round-the-clock work in video surveillance systems, with a load of up to 550 TB per year - this is almost three times more than standard video surveillance drives. And if you have a need for higher workloads, we recommend using Seagate enterprise-grade drives (for example, Exos, which was on our blog).
Of course, all these cameras will not be connected directly to the hard drive, but through a rather expensive NVR / XVR / *** device that will do the rest of the work: organize the archive and access to it, backup, process video streams (detection of people, cars , face recognition, …), etc. Not all devices, even from famous brands, have support for drives of such a large volume, but there are already plenty to choose from: from the world leader Hikvision (for example, in the I-series, Super NVR and DeepInMind NVR lines) to lesser-known ones - Dahua, TVT or Uniview . Up to 16 SkyHawk drives can be installed in HikVision devices - just imagine this setup and its possibilities.
Hikvision SuperNVR and Hikvision DeepMind NVR
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Let's return to our disk. The spindle speed is 7200 rpm - the golden mean, providing the device with the performance necessary for working with video. As well as durability and low noise level. You can see the noise values on the plate, but the values \uXNUMXb\uXNUMXbare given there for the disk "on the table" - in fact, the disk will be hidden in the NAS / NVR or in the bowels of the system unit, where there will be no noise and vibration from it.
Speed measurements were made in the well-established HD Tune Pro version 5.70 utility. All screenshots are clickable.
Linear read - from 120 to 266 MB / s with an average value of 209 MB / s, similar values \u11.6b\u13bfor writing. The random access time is in the range of XNUMX - XNUMX ms for reading and tenths of milliseconds for writing - a good result, largely due to a separate cache.
Reading:
Record:
All Seagate SkyHawk AI series drives have 256 MB of cache, a solid size, but in this case it plays a special role. The disk firmware contains a new version of the algorithm Image Perfect AI, which optimizes video streaming, ensures that there are no dropped frames in recordings, and minimizes data errors. The algorithm is based on multi-tier caching technology (MTC, Multi-Tier Caching) and provides:
- 64/XNUMX video streaming from XNUMX HD cameras.
- High speed streaming.
- No dropped frames (due to algorithms for error correction and data reconstruction).
- High image integrity.
- Support for the ATA-8 Streaming command set (for data transfer, priority is given to time rather than data integrity, allows the host to request the delivery of data within a certain time), optimized for processing large sequential data arrays, typical for video files.
For more information on how the technology works, see and take a look at this video:
See the document linked above for more details on how AcuTrac technology delivers consistent performance and reliability even in high vibration environments.
Also on board is SkyHawk Health Management (SHM) - a special software developed in conjunction with Hikvision (for systems with NVR OS 4.0) - SMART on steroids, which has gone beyond the industry standard. The technology monitors and analyzes data on the health and performance of the disk, which can help prevent possible problems in time.
Specifications Seagate SkyHawk AI
The SkyHawk AI lineup includes devices with a volume of 8, 10, 12, 14 and 16 TB. In addition to volume, they differ only in weight, the number of plates, power consumption and a slightly lower maximum constant data transfer rate on the outer diameter (for younger models).
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Main characteristics
Common parametersModel: Seagate SkyHawk AI
Manufacturer code: ST16000VE000
Release year: 2019
DriveStorage capacity: 16 TB
Format: 3,5"
Cache size: 256 MB
Spindle speed: 7200 / min
Number of plates: 9
Heads: 18 (for 16 and 14 TB models)
PerformanceOn Time: 23 seconds - typical; 30 seconds - maximum
Maximum data transfer rate: 250 MB/s
Average access time: 4.16 ms
Average waiting time: 4.16 ms
InterfaceInterface: SATA 6Gb/s (SATA III)
Interface bandwidth: 6 Gbps
NCQ support: There is
Mechanics and reliabilityMaximum working load: 550 TB per year
Number of positioning-parking cycles: 300 000
MTBF: 1.5 million hours
AFR: 0.44% (based on 8760 POH)
Rotational Vibration Protection: yes, 12.5 rad/s2 up to 1500 Hz
Impact resistance during operation: 50G for 2ms on, 200G for 2ms off
Unrecoverable read errors/read bits: 1 error at 1E15 (10 to the 15th power) bit
Noise level in operation: 28 dB
Noise level in idle mode: 18 dB
Working temperature: 5 ~ 70 ° C
Limited Warranty: 3 years
Noise and power consumptionNoise level: in standby mode - 1.8 bels (typical), 2.0 bels (maximum); when searching - 2.6 bels (typical), 2.8 bels (maximum)
Average power consumption in operation mode: 6.71 W - average during operation
Average standby power consumption: 5.1 W
Energy consumption at start: 21.6 W (starting current 1.8A in a 12V circuit)
Read/Write Power Consumption: 6.9 W
Average power consumption in Standby and Sleep modes: 1.05 W
Dimensions, weightWidth: 101.6 mm
Length: 147 mm
Thickness: 26.1 mm
The weight: 670 gr
Price
Estimated prices at the time of posting:
16 TB — 37 500₽
14 TB — 31 000₽
12 TB — 26 500₽
10 TB — 21 500₽
8 TB — 16 500₽
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Build your infrastructure competently and safely, this eliminates many problems!
Thank you for attention!
Source: habr.com