Toshiba has announced its third-generation SV-series hard drives designed for always-on video surveillance applications. The new HDDs can record videos from 64 HD cameras simultaneously, offer up to 10 TB capacity, and offer a considerable increase in the performance-per-dollar metric compared to their direct predecessors due to higher spindle speed and areal density.

The Toshiba MD06ACA-V family of hard drives includes models with 6 TB, 8 TB and 10 TB capacities featuring a 7200 RPM spindle speed, a 256 MB cache buffer, and a SATA 6 Gbps interface. The SV-series HDDs are aimed at various video surveillance applications (SDVR, SNVR, Hybrid SDVR) and therefore support a number of specific enhancements, such as ATA streaming technology and ability to record data from up to 64 HD cameras at once. Surveillance-class HDDs have to quickly wake up from idle and resume work, which these drives support.

Since devices like surveillance digital video recorders and surveillance network video recorders usually contain many hard drives (and to some degree resemble a NAS), Toshiba’s new SV-series HDDs are prepared to work in vibrating multi-drive environments. To a large degree, the new SV-series HDDs from Toshiba rely on the platform originally developed for the enterprise-grade MG06ACA HDDs (which also work in vibrating environments) launched earlier this year. Not all capabilities of the MG06ACA are supported by the MD06ACA-V, but the drives feature top and bottom attached motors, RVFF sensors, second-generation dual-stage actuators, and some other enhancements. Toshiba rates its 3rd generation SV-series HDDs for 180 TB per year and one million hours MTBF, which is considerably below ratings of enterprise hard drives, but is in line with HDDs for surveillance applications from other makers.

When it comes to actual performance, Toshiba’s MD06ACA-V drives resemble their enterprise-grade brethren: a 240-249 MB/s maximum sustained transfer rate, which is natural as the drives use the same PMR platters. Meanwhile, the power consumption of the SV HDDs varies between 7.88 W and 9.48 W, depending on the model, but this is lower compared to the aforementioned enterprise-grade hard drives. It is noteworthy that from the pure performance point of view, the Toshiba’s MD06ACA-V are the fastest HDDs for surveillance applications in the industry. However, since flagship Seagate SkyHawk/SkyHawk AI and WD Purple drives use helium for high-capacity models, their power consumption is tangibly lower when compared to that of Toshiba’s MD06ACA-V.

Since there are a lot of legacy video surveillance systems deployed, and their HDDs are aging, owners may want to upgrade them. Because older systems use outdated software designed for hard drives with 512B sectors, the MD06ACA-V series supports emulation of such sectors and thus the read-modify-write (RMW) operation to align the source write request with the physical sectors on the disk. The SV-series drives do not feature persistent write cache (PWC) with power loss protection (PLP), unlike the more expensive enterprise HDDs.

Specifications of Toshiba's MD06ACA HDDs 10 TB 8 TB 6 TB
RPM 7200 RPM
Interface SATA 6 Gbps
DRAM Cache 256 MB
Persistent Write Cache ???
ATA Streaming Supported
Read-Modify-Write Supported
Sequential Data Transfer Rate (host to/from drive) 249 MB/s 241 MB/s
MTBF 1 million
Rated Annual Workload 180 TB
Acoustics (Seek) 34 dBA
Power Consumption Random read/write 9.48 W 8.61 W 7.88 W
Idle 7.15 W 6.33 W 5.59 W
Warranty 3 Years

Samples of Toshiba’s MD06ACA-V hard drives are now available to interested parties. Since the HDDs will be sold primarily to makers of video surveillance systems, Toshiba does not publish any information about pricing of the new drives as it depends on volumes and other factors.

Related Reading

Source: Toshiba

Comments Locked


View All Comments

  • shabby - Thursday, November 30, 2017 - link

    Did the pr department come up with that 64 hd streams feature? I'd like to see this put to the test, I smell bs.
  • MrSpadge - Thursday, November 30, 2017 - link

    "HD" is pretty low by PC standards, and we're surely talking about compressed videos streams (uncompressed doesn't make sense to store). So ~1 MBit per stream is probably sufficient, which is not out of reach of HDDs if the acess pattern is optimized.
  • ERJ - Thursday, November 30, 2017 - link

    Well, most HD streams are more in the range of 8Mbits - 20Mbits. Still, we are talking about 1MBps - 2.5MBps so x 64 for large writes is still well within the performance.
  • Death666Angel - Thursday, November 30, 2017 - link

    Youtube says "720p 5 Mbit/s 7,5 Mbit/s" (which is generally considered HD) and "1080p 8 Mbit/s 12 Mbit/s" (which is Full HD).
  • quiksilvr - Thursday, November 30, 2017 - link

    Incorrect. The video bitrate range for 720p video at 30fps is 1.5 - 4 Mbps. My source is google support itself:
  • DanNeely - Thursday, November 30, 2017 - link

    Surveillance streams are probably even lower framerates and more heavily compressed to produce the awful quality that we always see on the news/etc when something happens.
  • quiksilvr - Thursday, November 30, 2017 - link

    Depends on the camera system. For example we have ours set to 1280x720 30fps at 1Mbps but you can toggle the bit-rate, resolution and frames per second.
  • shabby - Friday, December 1, 2017 - link

    I just started a 4k 64 thread test on a mechanical drive and i don't think i have enough patience to wait for the results, an ssd breezes right through it while the hd is taking its sweet time.
  • Ktracho - Thursday, November 30, 2017 - link

    Is there any disadvantage (other than price) to using exclusively using surveillance type hard drives in a NAS box, even if it is not being used for surveillance purposes?
  • edzieba - Friday, December 1, 2017 - link

    Yes. Surveillance drive firmware basically doesn't give a toss about write errors, its designed to just keep writing no matter what due to expecting to handle a constant stream of incoming data. Not something you want in a NAS (where you actually care about every bit you're writing).

Log in

Don't have an account? Sign up now