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Similar to the previous iterations in the bus-powered My Passport line, the 2019 My Passport 5TB also uses a 5400 RPM drive internally. Based on WD's naming convention for internal drives, it can be seen that the WD50NDZW corresponds to a 5TB 2.5" drive with a 15mm z-height. It has SED (hardware encryption) capabilities. The 5400 RPM disk has a 128MB cache and the board has an integrated USB 3.0 bridge chip leading to a Micro-B interface.
Seagate 5TB BarraCuda 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5 Seagate 5TB BarraCuda 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5
Thinnest and lightest 2.5-inch hard drive with up to 2TB storage in a 7mm z-height, providing seamless upgrades of thin and light laptops and smaller form factor systems.
Seagate data sheet for DM-SMR Archive drives: https://www.seagate.com/www-content...dd/en-us/docs/archive-hdd-dS1834-3-1411us.pdf
BarraCuda 2.5 | Support Seagate US BarraCuda 2.5 | Support Seagate US
When it comes to measuring performance of the Seagate SSHD Thin the two categories of benchmarks that we commonly test all consumer HDDs and SSDs on show strengths in different areas. Our synthetic benchmarks are geared at showing the performance of the drive in an uncached “worst case” scenario, while our real-world traces allow the drive to cache data and better show how the drive would perform during repetitive day-to-day activities. Since the SSHD is really geared towards those workloads, we put more weight on than in this review than we would normally do for traditional HDDs or SSDs. Seagate’s provided power values came very close to the data we collected from our tests. Our actual idle rate measured 1.15 watts, while active power values ranged from 3.20 to 2.07 watts. Our sequential write pattern had the highest power values and the random 4K read test had the lowest. Seagate’s active seek number falls right in that range. Startup power requirements measured 4.01 watts to get the drive to operating speed. url=https://hdd.userbenchmark.com/SpeedTest/9154/ST500LM000-SSHD-8GB]Userbenchmark: Seagate ST500LM000-SSHD-8GB 500GB[/url] While the vast majority of the Seagate BarraCuda 2.5" 4 TB HDDs will use a four-platter configuration, some Seagate customers have apparently requested a five-platter configuration. Obviously, being based on 800 GB platters, such drives have lower areal density and, perhaps, different performance and behavior.Seagate Adaptive Memory™ technology effectively identifies the most frequently-used data in your computer. This data is stored in the ultra-fast NAND flash memory which results in blazing fast boot times, and a super responsive experience where you wait less and do more. This technology is constantly working and adapting to way you work and access information. Though there are some key updates from the Gen2 Momentus XT, there are many similarities. Like the Momentus XT, the Seagate SSHD 500GB Gen3 interfaces over high-speed SATA 6GB/s. It also still comes with 8GB of NAND flash, which keeps the price low but, at 8GB, hinders the hybrid from even greater performance. The new SSHD Gen3 line also gets a naming convention update. The first generation hybrids were called Momentus XT, while the second generation models were called Momentus XT with Fast Factor. Now, Seagate has dropped Momentus family branding altogether, opting instead for the simpler category name of SSHD. To help clarify drive generations, StorageReview will reference the drives on a go-forward basis with the SSHD generation number to help clarify the chronology for consumers (Gen1, Gen2, Gen3). Seagate ST500LM000 Laptop SSHD Specifications Interface SATA 6Gb/s NCQ NAND Type/Size MLC/8GB DRAM Cac... Condition WD platter sizes 2.5": https://rml527.blogspot.com/2010/10/hdd-platter-database-western-digital-25.html
Key Advantages - Seagate
HGST Host-Managed SMR DataCenter drives: https://www.westerndigital.com/products/data-center-drives/ultrastar-dc-hc600-series-hdd WD platter sizes: https://rml527.blogspot.com/2010/10/hdd-platter-database-western-digital-35_9883.html l) OpenZFS Office Hour discussion on SMR: 2015, SMR, Resilvering, Possible Solutions at around 20, 31 and 46 mins respectively, https://youtu.be/mS4bfbEq46I?t=1220 o) Poster for Zone-based Storage Tiering for HA-SMA: 2017, University of Minnesota, https://sc17.supercomputing.org/SC17 Archive/tech_poster/poster_files/post204s2-file2.pdf In the File Server profile, the Seagate Gen3 offered substantially better performance than all of the competition from 8-64 IOPS at 3x-5x. However, at 128 IOPS, the Gen2 was tops.
A puzzling addition to Seagate’s portable storage range
Large capacity portable hard drives have reached a plateau. There’s not much hardware improvement that can be made as there is little to no incentive to invest in R&D. New technologies like HAMR or Helium are reserved for more lucrative markets like data centers where the need for smaller 2.5-inch hard disk drives is, well, non-existent. For the average consumer, trying to translate random 4K write speeds into an everyday situation is pretty difficult. It helps when comparing drives in every setting possible, but it doesn’t exactly work out into faster everyday usage or better game loading times. For this reason we turned to our StorageMark 2010 traces, which include HTPC, Productivity, and Gaming traces to help readers find out how a drive might rank under their conditions. The capacity of a hard disk drive is determined by two factors: the number of platters that can be squeezed into any given height, and the capacity of each platter. For a number of years now (since late 2015), the maximum capacity of platters has plateaued (pun intended) at 1TB. Design
Seagate Laptop Thin SSHD
z-height enables slimmer all-in-one desktop PC drives while helping reduce system heat generation and vibration. p) Manylogs concept, platters would need SMR and CMR sides: 2016, IEEE, https://ieeexplore.ieee.org/document/7897075 Seagate Introduces BarraCuda 2.5” HDDs with Up to 5 TB Capacity by Anton Shilov on October 21, 2016 12:01 PM EST
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Het volgende scherm is een waarschuwingsscherm. Lees de inhoud zorgvuldig door en selecteer Volgende als u akkoord gaat. Ironically, the barebones 5TB drive is up to 50% more expensive than the external model, despite having fewer materials (no cable, chassis or electronics); the laws of supply and demand at work. In the 4K Random Transfers MB/s, the Seagate Gen3 again ranked second behind the Gen2, with the Gen3 at 0.496MB/s and 0.896 MB/s. The Seagate Gen3 also ranked high above most of the competition at 127.1 IOPS read and 229.4 IOPS write, but first place was snatched up by the Seagate Gen2. Up to 5TB capacity and both 7mm and 15mm form factors suitable for a variety of compute applications. jabber - Thursday, October 3, 2019 - link Yeah just hope the USB bridge doesn't fail as it's built into the HDD so you cant just remove the HDD and put it in another caddy.
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