WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD20PURX [Old Version]

Pros: Performance. This is the best-performing mechanical drive I have ever tested. I have four other mechanical HDDs dating back to 2005, including three other Western Digital drives, and this is the best performer across the board. It even beats my old SSD in terms of sequential writes and random writes (likely due to the on-demand nature of TRIM in the SSD): Western Digital WD1003FZEX: 1000 GB, 7200 RPM, this review 187.01 MB/s sequential read 184.54 MB/s sequential write 60.89 MB/s random read 109.23 MB/s random write Seagate ST3000DM001: 3000 GB, 7200 RPM, purchased 2012 181.42 MB/s sequential read 178.97 MB/s sequential write 50.22 MB/s random read 90.35 MB/s random write Western Digital WD20EARS: 2000 GB, 5400 RPM, purchased 2011 112.32 MB/s sequential read 107.88 MB/s sequential write 31.34 MB/s random read 56.34 MB/s random write Western Digital WD3200AAKS: 320 GB, 7200 RPM, purchased 2007 76.86 MB/s sequential read 75.57 MB/s sequential write 33.68 MB/s random read 43.90 MB/s random write Western Digital WD2500KS: 250 GB, 7200 RPM, purchased 2005 63.55 MB/s sequential read 62.52 MB/s sequential write 31.32 MB/s random read 38.16 MB/s random write Intel SSDSA2M080G2GC: 80 GB, purchased 2009 253.07 MB/s sequential read 81.98 MB/s sequential write 196.70 MB/s random read 39.61 MB/s random write Noise. This drive is very quiet. I don’t have any empirical data for noise, but the hard drive activity never became audible above the hum of the CPU fan in my desktop. Heat. This drive is very cool for such a high-performing 7200 RPM drive. Even after a 100 GB transfer that took around 20 minutes, reported temperatures never exceeded 30°C (86°F). Weight. Not that it matters much with internal drives, but this is a very light drive compared to my other 3.5 inch HDDs. The area below the platters on the bottom of the drive is recessed about 3/16 of an inch further than other drives, I assume because it uses one fewer platter. As a result, it feels much lighter. Cons: Price. A 5400 RPM Western Digital Green drive with twice the capacity is available for about the same amount of money. However, using the less-expensive green drives would incur a notable performance decrease. In my testing above, this drive had 66% better transfer rates than a 2-year-old 2TB WD Green for sequential reads and writes and 93% better transfer rates for random reads and writes. So for enterprise tasks, one could argue that the performance of this drive merits the increased cost. For most consumer uses, the 5400 RPM Western Digital Green drives are a better value because they offer at least double the capacity for the same price. The performance loss is not significant considering that they outperform 7200 RPM drives from just a few years earlier. However, for technical or enterprise purposes, the additional throughput can be a real benefit. As someone with I/O-intensive workloads (geographic information systems), this drive offers adequate capacity with exceptional performance. All performance tests were conducted using CrystalDiskMark 3.0.3 x64 with each drive loaded into the same SATA hot swap bay. Testing was conducted in Windows 7 Ultimate x64 with a socket LGA1156 Intel Lynnfield 860 CPU at 2.8 GHz, 8 GB of RAM, and the Intel P55 3 GB/s SATA controller on the Gigabyte GA-P55-UD4P motherboard.

This drive has been in service for over a year and a half with 3 cameras feeding to it 24/7. One 1080p, one 960p and one 480p camera all 25-30fps. The drive has performed beautifully and is very steady in write performance and temperature (used in a Mac Pro). Loading video, specially while recordings are going, may take a little longer depending on drive activity and file size. For a 5GB 1 hour clip I'm waiting maybe 5 seconds for the file to open and another 5 for playback to be smooth. Slower than you'd see on a traditional drive, keeping in mind this is a 5400rpm drive, but still well worth it. With my configuration it holds a little over two weeks of recordings for all cameras. The drive currently has 15,375 hours on it and the S.M.A.R.T. status and overall drive health is 100%. Not a single bad sector or any signs of wear. I'll replace this down the road only because I'll need a bigger one and even then this will sit in a RAID until it fails. =================== Update, April 2023. The drive just started failing after 8 years of pretty much 24/7 use (69K+ hours on it), supporting 6 HD cameras for the last 5 years. For $70 this was the best money I have ever spent on a hard drive. Ordering a 4TB newer model now, I hope it serves me equally well. These 2TB (WD20PURX), while now an older model, I highly recommend.

So far this has been a great hard drive. I purchased to use in my security camera NVR. Arrived packaged sufficiently. Like others I was comparing this relatively new model to the tried and true WD Red. I almost went with the red simply because it had better specs for amount of data being read and written to the drive annually, is that meaningful or not, I don't think so. Honestly though, I really think the two drives are nearly, if not, identical. Sure WD markets this as a surveillance drive (with AllFrame) but I see this as nothing more than marketing fluff and a way for WD to market to another group of users and get more shelf space for their drives. Data is data and nothing more than 0's and 1's, the hard drive couldn't care less if it's video or docs as long as it can handle enough throughput for your application. Besides that rant, I'm very happy with this drive and have almost always had great experiences with WD drives, I can't say the same for Seagate. BTW, I am running this in an Hikvision OEM's NVR and currently it's only supporting 3 - 2 Megapixel cams (approximately 1080p). The drive is recording nearly 24x7 and I have no problems with simulataneous read/writes. This drive's a winner.

buena inversión

Make sure you scan your hard drives when they're delivered!! Techs already know to do this, but everyday users might not know how valuable it can be in detecting a damaged drive. I recently bought 2 of these for video file storage on my desktop computer, which they work fantastic for. However, one of the drives failed error surface scan and erase write tests (HD Tune software) when it was received, so it had to be returned. I am fairly confident, however, that the drive was damaged during shipping, and that it probably was not defective from the manufacturer. Amazon combined my hard drive order with a separate order of books without my consent. I had specifically placed the orders separately, about 4 days apart, so that the hard drive would ship all by itself. (I had ordered the first of these 2 drives the same way in early January, so that it would ship all by itself.) The books in this 2nd order were freely slamming around inside the box all during shipping because no packing peanuts were used, only the large airsoft bags. I was p*ssed when I opened the box and saw what they had done. I took 1 star away because Western Digital needs to package their drives in a better self-contained, shock resistant box that doesn't rely on the retailer to safely package. I appreciate the efforts they've made with the packaging so far, but as it stands now, their WD name is riding on the assumption that mail order companies know how to package their hard drives safely....and that's a foolish assumption. I know it's usually frowned upon to score a product based on shipping damage, but this wasn't an extraordinary circumstance with the shipping damage, and the drive's WD packaging should have been able to protect it. Had the WD box been better this damage would very likely not have occurred. In terms of performance, I was worried that these might be a bit slow for desktop use given their intended purpose, but I was definitely wrong. Don't let the slower spindle speed fool you. Just for reference, these are twice as fast as my old 200gb Seagate Barracuda 7200rpm, 32mb, EIDE drives at performing everyday tasks like a Synctoy scan of the drive for files that need to be backed-up. I performed identical runs just for comparison and these drives did in 30 minutes what took an hour on those old 200gb drives. These should perform very nicely in most desktop applications. Their burst speeds are exceptional, and I've read that they are even better than the Black WD drives. Again, I HIGHLY advise you to order these drives so that they ship ALONE, and scan them when you receive them. Anything extra inside that shipping box, with the exception of a lightweight cable or two, is going to beat the hell out of it.

Worked excellently and was delivered as so. I unboxed it and plugged it into my system(Anneke) and it has worked diligently ever since. I have some people near me who kept the streets hot( cars, trucks, people, cops) and my harddrive kept up with over 300 gb in two days and still kept going and never lagged the system! This is worth the buy! If I need another for myself or someone else this is what I recommend!

Still going no issues.

Purchased this for my new IP security camera system and opted to save some money and install my own hard drive instead of having the distributor install it. I contacted the distributor to find out which drives they recommend and without hesitation they said they only use WD Purple drives for their installs so ordering this was a no brainer. Amazon's price was pretty much the same as others but I'm so glad I got this from Amazon. When my drive arrived (packaged very well) I could not get my system to boot up. After some testing I could see that the BIOS would recognize the drive but it would fail to initialize and would report an error. Amazon's RMA process is the best. They immediately sent me a replacement and shipping label to return the bad drive. The replacement installed perfectly with no problems. I'm only a couple days into this drive but it works and hopefully the specialized specs will allow it to run cooler, longer, and more reliably store the video data. Unfortunately, I won't really be able to give a proper review until I've had it running for a really long time after going through several overwrite cycles and scouring through video feeds looking for errors. I'll update if I have any problems with the drive but otherwise you can assume that drive is working out perfectly for me.

Western Digital社が、色分けでモデルの特色を区別する中で、紫色のこの WD Purple モデルは映像記録用に特化された『All Frame™テクノロジーによりストリーミングのパフォーマンスを向上し、フレームロスを防ぐ』モデル。 監視カメラ用の連続稼働や各カメラ・チャンネル映像の同時並行でのアクセス、連続運転のための静粛性・低騒音のための低回転駆動を優先した、Seagate Pipeline HD シリーズや Western Digital の WD-AV シリーズの後継にあたる。 最大８台のHDDで、同時に最大３２台の監視カメラ映像を同時並行で毎日２４時間連続で書き込むのを止めずに、そのまま確認のために映像を再生することもできるような使われ方を想定したモデル。データサーバーなどの高速アクセス・データ化けの致命度とは異なる設計で使い分けるのに好適。 これを実現する、ATAストリーミングコマンドを意識したテレビ放送の全録機や、複数チャンネル・複数チューナーを同時録画再生するような HDDレコーダーには、アクセス速度を追及した WD Red や WD Black のような発熱の犠牲を連続して受ける副作用よりは、この WD Purple のように多少のデータ信頼性がなくとも静かでフレーム落ちはしない淡々と常時駆動するのに向いたモデルが良い。 ＜利用例＞東芝のレグザ・タイムシフトマシン(地デジ6チャンネル同時全録機)DBR-M190 では、２台入っている Seagate Pipeline HD ST2000VM002 (2TB, 5900rpm, SATAII, 64Mcache) が異音や書き込み不良を起こした際、２台とも WD Purple 2TB WD20PURX に交換することで正常動作を得ています。２台交換→タイムシフト設定を削除するため「初期設定／管理設定」→「設定の初期化」→「レコーダーの初期化２」ののち、本体録画用の2.5インチHDDのアクセスケーブルだけ抜いて再起動させ、タイムシフトマシンHDD２台だけで起動、デッキの初期設定をすべて終えて、本体2.5インチHDDを接続して再起動により、すべてのHDDが適切に認識されて復旧できました。

Buen servicio, llegó antes de lo esperado y lo mejor de todo es que el equipo es de excelente calidad y adecuado para el servicio de grabado en DVR.

does what it says and its from a reputable company... im currently using a 4TB WD purple hdd in my main DVR running 24x7 for the past year without any problem and i expect this to do the same... i used to use seagate barracuda drives in my dvr but they would always heat up and crash after a year of running 24x7 in my main dvr but these wd purple drives dont seem to crash running 24x7...

Produto de qualidade!

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