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Western Digital Purple 6TB Surveillance 3.5 Inch SATA 6 Gb/s Hard Disk Drive with Allframe 4K Technology - 180TB/yr, 64MB Cache, 5400rpm - WD60PURZ

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Next to being designed for 24/7 always-on scenarios, the WD Purple series is also designed for high-temperature environments. The temperature rating of the WD Purple, on the base casting, ranges from zero to 65 degrees Celcius when operating and -40 to 70 when non-operating. In today’s review, I am taking a look at a mechanical hard disk, but it isn’t one that is intended for your desktop system. Western Digital created their Purple line of hard disk drives to be the perfect choice for digital video recording, network video recording, and surveillance systems. On the test bench today is the 6TB version of this WD Purple surveillance hard disk. WD Blue: son discos todo-terreno, para todo tipo de usos no específicos, su rendimiento varia en función de las RPMs que use (desde 5.400 hasta 7.200).

WD Purple Surveillance Hard Drive up to 8TB of Storage WD Purple Surveillance Hard Drive up to 8TB of Storage

The drives don’t just have to be perfect for the scenario that they are to be used in, they also need to be compatible with the systems themselves. WD made sure that this was the case by working closely with industry leading chassis and chipset manufacturers. If you got an NVR system, you’ll most likely find the WD Purple on the official list of supported drives. through 3TB (WD30PURZ) support up to eight bays; 3TB (WD33PURZ) and 4TB and above support up to 16 bays.

WD Green: son los que consumen menos, hacen menos ruido y generan menos calor, pensados para HTPC y equipos multimedia de salón. http://media.webcollage.net/rwvfp/wc/cp/18574709/module/wdc//_cp/products/1413335120504/tab-ac400f4c-4428-497b-9f34-63a3b9c75d5f/8cfae72e-fb78-49a4-accb-6f5861c122cb.mov.mp4full.mp4 En mi caso, compré un Purple porque su uso va a ser almacenamiento de datos y copias de seguridad en un servidor casero que está casi siempre encendido, así que es perfecto para este uso.

Western Digital Surveillance Hard Disk Drive_6TB - Purple Western Digital Surveillance Hard Disk Drive_6TB - Purple

Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.

Caching algorithms are tuned for write-intensive, low bit rate, high stream count applications that are typical of surveillance applications. MTBF specifications are based on a sample population and are estimated by statistical measurements and acceleration algorithms under typical operating conditions: workload of 90TB/year and drive temperature of 40°C. Derating of MTBF will occur above these parameters, up to 65°C drive temperature. MTBF does not predict an individual drive’s reliability and does not constitute a warranty. The entire line of WD Purple drives, from 1TB up to 6TB, all feature 64MB cache and come in the same 3.5-inch form factor. WD also used their IntelliPower system that we know from such drives as the RED series, that uses variable speeds to bring the performance that is needed without excessive noise from the motors. But that is where the similarities of the drives end. The 6TB version that I’m taking a closer look at today is the best performing of them all with a sustained speed rating of 175MB/s where the 1TB model for example only is rated for 110MB/s. The drives naturally also differentiate in power consumption. The bigger the drive, the bigger the power draw, that is if the word big even applies here. The WD Purple 6TB draws 5.3W during read and write operations, 4.9W when idle, and 0.4W when in standby or sleep mode.

WD Purple 6TB Surveillance Hard Drive Review | eTeknix WD Purple 6TB Surveillance Hard Drive Review | eTeknix

WD Red: pensados para NAS y grandes sistemas de almacenamiento de datos, para uso continuado. Mejor rendimiento en lectura que en escritura. The WD Purple WD64PURZ drive features a workload rating of up to 180TB/year — up to three times that of desktop drives — to handle the unique demands of mainstream video surveillance DVR and NVR systems. Multiple Cameras, Multiple Streams Single stream at 3.2Mbps (1080p, H.265, 25 fps) for WD22PURZ, WD33PURZ, WD42PURZ, WD43PURZ, WD60PURZ, WD62PURZ, WD63PURZ, WD64PURZ, WD84PURZ and 2.6Mbps (720p, H.265, 25 fps) for WD10PURZ, WD20PURZ, WD30PURZ, WD40PURZ. Results may vary depending on camera resolution, file format, frames per second, software, system settings, video quality, and other factors.WD Purple: Pensados para equipos de video-vigilancia y grabación de video, equipos que están encendidos 24/7; rendimiento medio y mayor rendimiento de escritura que de lectura. With an MTBF of up to 1 million hours 3, WD Purple™ drives are engineered for mainstream surveillance DVRs and NVRs that operate 24/7. With tarnish-resistant components 3 and support for more than eight bays 4, WD Purple drives deliver reliable operation even in harsh environments. Whether you want to protect your personal assets and loved ones or monitor the business you worked hard to build, you’ll want surveillance-class storage to rely on. Not only are these drives built for 24/7 usage in environments up to 8 disks, they also come with enhanced firmware built just for this kind of operation. When it comes to surveillance, every frame counts, and every frame has to be perfect. This is especially noticeable when many cameras are using the drives simultaneously. WD’s Purple series has no trouble here and it is designed to work with up to 32 HD cameras.

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