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WD Purple 10TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD100PURZ

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  • Engineered specifically for surveillance security systems.
  • Supports up to 180TB/year workload rate.
  • Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications.
  • Prioritized write-operations for maximized surveillance performance.
  • TLER & ATA streaming support.
  • Support for more than eight bays.

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Western Digital WD100PURZ

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
Eggxpert Review

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5/ 5
Reliable drive

Pros: - Massive capacity, 10 TB which is a lot of video regardless of whichever resolution you are recording
- Can sustain long write times which accounts for its durability and endurance as a drive'\
- Was quite surprised of how quick it performed for a 5,400 RPM drive.
- 256 MB of cache which is largest ever
- Runs pretty quiet, Synologys make a difference
- Temps are not an issue runs extremely cool
- 3 year warranty which is outstanding and much needed for a drive in this class

Cons: - Expensive, not worth getting unless you really are using this for surveillance whether it is for business or the home setting.

Other Thoughts: Had the drive running for about 10 months now consistently without any hiccups. I was quite pleased with how well it has stood up to continuous writing. Recording was done using a third party security cam recording at 480p/30fps. Upon review of selections of recordings the drive was flawless. No degraded files etc.

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Eggxpert Review

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5/ 5
Perfect for a Synology NAS NVR

Pros: + Robust Drive
+ Largest size of this type (10 TB is massive right now)
+ 3 year warranty
+ Designed for CONSTANT writing
+ Does not suffer from the Idle3 Timer Issue
+ Weekly disk checks consistently come up clean
+ Fast for a 5400 RPM drive (256MB largest cache!)
+ Completely silent (Synologys are quiet, so loud disks are annoying)

Cons: - Large disks are still expensive. Having multiple for a RAID is $$$$
- Only 3yr compared to 5yr warranty of Enterprise disks

Other Thoughts: I've had this running 24/7 for about 4 months now in a Synology NAS using it as a NVR with the included CameraStation software. It's performed flawlessly recording a 1080p/60fps stream and a 480p/30fps. Playback of video works perfect also. It's a great price/storage ratio and specifically for NVR/DVR video.

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Eggxpert Review

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4/ 5
A bit pricey for what it is, but it gets the job done

Pros: - Was able to record 4 2k streams without issue
- Performance was acceptable as a camera drive
- Quiet, for the most part
- Standard size means it doesn't need any special caddy or chassis
- 3 yr warranty instead of 1 yr (thought I'd rather have 5)

Cons: - HOT. This is the biggest con really. I wonder how the lifespan will be affected. I use my drive in an enclosure with a fan so it does have air movement. My guess is that with data platters this size it just can't quite stay as cool as other 5400 RPM drives like WD Green and others. Seems that others have this issue too.
- 3 yr warranty is better than most, but honestly with a drive that's more specialized as is, I would expect 5. Still, 3 is better than the 1 that comes on the Green.

Other Thoughts: My testing was done in two scenarios. The first was inside of a Synology 415+ by itself. Recording 4 2K streams was no problem at all and the speed was acceptable and in line with most of the other things I have used at 5400 RPM. Playback was a bit slower but that's more than likely due to the drive being a 5400 RPM drive more than anything else.

If you don't have a ton of cameras and you want to record in really high resolutions, I think this should fit the bill.

The other test was done in a custom server with an Intel SATA AHCI 6.0 GBs port. I attempted a few different types of file transfers. The first being large sized data (multimedia single large files). I must say it performed just fine and reads after the drive had been filled to 50% capacity were still good. For a static data drive, it held it's own.

After this, I tried something a bit more in the realm of standard data (lots of little files, few large files) and that's where things began to choke. Now, I know this isn't what the drive was intended for, but I like to just cover all my bases to get a good feel of the strengths and weaknesses.

Could I use it as a backup drive? Yes. Would I? Probably not. As a camera drive? Absolutely. It's a perfectly fine drive for that, which coincidentally is exactly what it's designed for.

If you need something that is large capacity for recording video at a relatively low cost, then this is a drive I can recommend!

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Eggxpert Review

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5/ 5
Works Well With Cameras

Pros: - Quiet
- Fits in a 3.5 inch bay without problem
- Supports hdparm secure ATA enhanced erase under Linux

Cons: - None (works as-advertised)

Other Thoughts: - This drive is advertised as a surveillance HDD due to its ability to handle outstanding disk writes
- The read performance of this HDD isn't too great; but for the purpose it's advertised for, this isn't a problem
- Because of the read performance of this HDD, I wouldn't suggest trying to use it for "general" activities (10TB might be tempting for a media server or gaming machine, but both of those activities benefit more from drive read performance)
- Benchmarks I've ran match closely to what others have claimed (average 80MB/s read, 150MB/s write)
- Camera performance was tested with 3 Raspberry Pi's running motionEyeOS. Recordings to the HDD from all 3 cameras with 800x600@30fps was handled without problem.

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Eggxpert Review

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5/ 5
Outstanding performer for its intended task.

Pros: I have used smaller versions of the WD Purple family and came away impressed. The 10TB drive takes performance to an entirely different level.

To clear things up first - this is *NOT* a general purpose hard drive. At 5400 RPM, random access is slow and the drive simply is not optimized for boot or standard file use. If that is what you are looking for, shop for a different model.

Where Western Digital's Purple series shine is in recording multiple video input streams. As with the lower capacity models we use daily, the 10TB drive has no issues handling an impressive number of simultaneous DVR/NVR streams. 30 simultaneous 720p x 30 fps recordings ran in parallel without issue. The drive is tuned for heavy writing of many relatively low bit rate streams and it shows.

The trick feature of the WD100PURZ 10TB drive appears during playback. Cache size increases to 256MB from 128MB on the 10TB model and 64MB on smaller drives. This, combined with firmware magic, allows streaming 4K video without dropping frames or stuttering. A single WD Purple 10TB 5400 RPM drive nearly matched a enterprise 15K RPM drive in playback of 4K video. Needless to say I was amazed at this performance. If you have already switched to 4K or are contemplating the change, I recommend this drive without hesitation.

Further benefits are that the WD drive runs quietly - noticeably more silent than the Seagate Skyhawk series. There is some noise under heavy writes, but no more than on other quiet drives. This drive can be used in an office without issue. Also, the SMART status reports remaining helium level, a potential failure that killed other enterprise drives we use.

Not pertaining to this drive in particular, but Western Digitals RMA support remains in a class of its own. We have well over 100 WD drives of varying capacities and failures happen. WD will pre-ship a replacement drive (often a newer model than the original) with a painless online RMA.

Cons: After some point, the WD100PURZ performance drops rapidly. When overloaded there is first significant buffering lag then frames are dropped. Write operations are definitely prioritized; reads are either slowed or dropped well before any writing problems occur. This is exactly the performance you want from a NVR drive - losing playback information is not critical, while loss of recording is.

The problem we saw is that there is not a graceful slowdown. Everything is fine up to a point. Add another stream and writes get dropped. Count on a single drive being able to handle 30 - 35 720p x 30 fps streams, 20-25 1080p x 20 fps or 4 4K streams at once. WD's spec of 64 streams is undoubtedly based on 480p.

Other reviewers comment on the high drive temperatures. I noted this as well - the 10TB drive averaged 35 - 38C at idle. I can't list this as a significant con as drive temperatures under full load remained under 45C in a NAS frame with less than ideal ventilation.

A 3 year warranty is disappointing given that enterprise class, 7200 RPM 10TB drives cost only 10-15% more but offer a 67% longer warranty (5 years).

Other Thoughts: Anyone working with 4K video knows full well the importance of having large capacity drives. 10 TB may sound huge to many people, but this is only room for slightly over 80 hours of RAW 4K footage. A single commercial shoot can easily fill that, or three 4K surveillance cameras running for just over a day.

Detailed SMART status and excellent streaming write performance make the WD100PURZ a near-ideal drive for video recording. The ability to handle numerous inputs and playback 4K video without a hitch is impressive. From our business perspective, this drive is certainly a viable option to the HGST enterprise disks we currently use.

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Eggxpert Review

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4/ 5
Great all-purpose surveillance HDD

Pros: * Rated at 180TB/year.
An important aspect of extending drive life. These disks are meant to be running near constantly in surveillance systems, so it makes sense WD would target that kind of environment when building a sturdy drive. The WD100PURZ should last many years, even under constant stress.

* Huge 10TB capacity.
Ideally a surveillance drive will do its job with minimal user involvement. With 10TB of storage, the WD100PURZ should be able to run effortlessly for extended periods of time without needing to clear space or create backups.

* Write-focused bandwidth.
This is an interesting concept that I've not seen on past surveillance drives, at least not to this degree. This HDD, unlike others, has a much higher Write speed as opposed to Read speed. This is particularly useful in surveillance systems since the drive will spend almost its entire lifespan writing, not reading. I used HD Tune Pro to analyze various sequential speeds.

Write:
Minimum, 1.6 MB/s
Average, 152 MB/s
Maximum, 172 MB/s

Read:
Minimum, 1.4 MB/s
Average, 84 MB/s
Maximum, 92 MB/s

For most surveillance systems, this should be plenty of throughput.

* Noiseless.
I was impressed to find a lack of humming/churning/clicking noises, especially during writes, with the WD100PURZ. Other Enterprise drives I've tested seem to put little focus on maintaining silence, and are often quite noisy! But the opposite is true of this HDD, it's as quiet as any of my other smaller, consumer-tier drives.

Cons: * 3 year warranty.
Not necessarily an issue but I would have hoped to see at least 5 years from an industrial (non-consumer) targeted drive like this one. Additionally, 10 TB is a lot of space to risk on such a short warranty. This isn't necessarily a criticism of the drive, but something people need to be aware of.

* Hot!
As others have mentioned, the WD100PURZ ran several degrees higher than my other drives during testing. I'm not sure if that's due to the capacity, or how the WD100PURZ manages platter rotation/speed. If you're going to be storing this drive in a tight environment, you may need to make considerations for its temperature. The WD100PURZ is rated up to 65C operational temperature. In my open-air environment, I had a delta of 10C~20C to spare.

Other Thoughts: I've tested another 10TB surveillance drive from a different company and it pales in comparison to the WD100PURZ. Western Digital has continuously proven themselves as a leader in the HDD industry and what I've seen from this HDD definitely reinforces that. I wasn't expecting to see this kind of performance disparity, but the WD100PURZ is truly an impressive surveillance drive.

The market value of these drives seems to be quite inflated; partially due to the large capacities, and also due to their non-consumer nature. Before purchasing an HDD for your camera system, I highly suggest analyzing your capacity needs and make sure you buy the appropriate drive for your environment. But also keep in mind, these drives are investments, and are meant to last for many years.

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Eggxpert Review

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5/ 5
Excellent multi-camera HDD for streaming feed

Pros: Setup:
Windows 7 64bit, Kaby Lake i7-7700,
Cameras: 4 D-Link DCS-2530L cameras - able to record in 1080p.
All four cameras are setup to record continually. Prior setup had the cameras recording to 4TB WD Red drives. Those drives had issues with being able to view video files, and especially while the system was recording. Lots of shuttering of the images.

Pros:
Size of the drive - Hard to find drives that are 10TB with such a large cache. Drive is very much designed for use with a large number of cameras.

Setup - Fast and easy to install and Windows had no issues formatting it. BIOS found the drive immediately after formatting.

No shuttering - Was able to watch 1080p video from any of the four cameras, while the system was recording. This was not possible with the Red series due to the smaller cache.

Warranty - 3 Years, which is standard for a high-end drive.

No errors or bad files - 24/7 recording for 2 weeks and not one file had and issue.

Power - 6.2 watts at sequential read.

Performance: CrystalDiskMark
Sequential Read : 211.114 MB/s
Sequential Write : 210.925 MB/s
Random Read 512KB : 75.221 MB/s
Random Write 512KB : 118.997 MB/s

This is the perfect drive for a surveillance setup for your home or office. Price will be a concern, but the ability to view files without lag or shutter is impressive. No loss of data or issues with opening and viewing files is a huge plus. Bit the bullet and get this drive if you have 4 or more cameras running at 1080.

Cons: Price - At $400, it is a very expensive drive. Everyone has the drive for the same price around the internet. That is a normal trend when a new drive comes out that is high-end. Is it ethical?

Runs Hot - Compared to my Red drives, this HDD runs very hot and placement at the bottom of my drive bay was not idea due to a need for direct air flow. Able to drop the temp of the drive by 4C when the drive was placed directly in the middle of a fan. Would be concerned if my CPU was not on liquid.

Very Thick - Had to move a HDD to another slot to give it proper room, as it does run hot.

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3/ 5
High sustained write speeds, perfect for camera environment. Quiet.

Pros: One of the biggest baddest drive on the market. Warranty is up to 3 years. It’s expensive but fast for a HDD that is. Let’s see how fast in the real world: I transfer to and from a Ramdrive with 9.5GB/sec read and write speeds with a 7700K/64GB, there are no bottlenecks here. This is the fastest you can ever expect the drive to read and write from. These are sustained writing speeds (after the buffer has exhausted)

Write:
Large: 166 MB/sec
Medium: 90 MB/sec
Small: 1.18 MB/sec

Read:
Large File: 80 MB/sec
Medium Files: 90 MB/sec
Tiny files: 1.3 MB/sec

That’s real world with real data, let’s check synthetic.

CrystalMark 5 gives these figures for 1 GiB, 5 passes:

Read:
Seq Q32T1 - 218.2
4K Q32T1 - 0.417
Seq: - 219.1
4K: - 0.32

Write:
Seq Q32T1 - 219.0
4K Q32T1 - 3.325
Seq: - 218.7
4K: - 3.285

You can see this is a drive that focuses on WRITE speeds. Which is exactly what you want for a multi-camera system. I threw in it my system and put every 4MP camera to write on it and it did it without a single hiccup.

If you didn’t use this drive for camera security, the buffer is huge and in real life is the file(s) is less than 1GB, it will copy seemingly instantaneously. Even medium sized files. A whole gig of mp3s/pictures in a 1 second. No kidding. No progress bar is even seen, it just is there.

Cons: Price Fixing (the industry norm) plus bleeding edge premium makes this one very expensive drive. What is interesting is this drive runs 10° C hotter than my other hard drives. That’s outside the case. (26° vs 36°C) . But even at higher temps, it's still not bad at all. It looses two eggs due to pricing and price fixing.

Other Thoughts: All claims confirmed. Excellent drive for security camera system OR heavy write environment. Quiet too.

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Manufacturer Response:
Hi Darrell L.,

We're sorry hearing how you feel the price point for this surveillance drive; but, glad the WD Purple drive meets your expectations and appreciate your time and feedback. The WD Purple family is built for 24/7, always-on, high-definition security systems. With a supported workload rate of up to 180 TB/yr and support for up to 64 cameras, WD Purple drives are optimized for surveillance systems.

"WD Purple Drive Specification Sheet (PDF)": http://products.wdc.com/library/?id=448&type=8&cn=2879-800012&lang=en

In case any other queries, please contact us and reference the case number below.

Support Case Number: 090617-12297814

Need Help? Please contact us at 1(855)559-3733.
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