Joined in 2023 
82 
63 About this deal
Seagate has formally introduced a new family of hard drives in the 2.5” form-factor. It is designed for laptops as well as external storage solutions. The new BarraCuda HDDs are based on 1 TB shingled magnetic recording platters and Seagate’s multi-tier caching technology. They enhance the maximum capacity of the company’s 2.5” HDDs to 5 TB - making the BarraCudaST5000LM000 the world’s highest-capacity 2.5” hard drive.
What I wrote four years ago is still valid; 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 non-existent. Performance WD platter sizes niche products: https://rml527.blogspot.com/2010/10/hdd-platter-database-western-digital-35.html WD platter sizes 2.5": https://rml527.blogspot.com/2010/10/hdd-platter-database-western-digital-25.html Experience — For more than 20 years, Seagate has manufactured and delivered the super-reliable BarraCuda family of drives
Other useful videos for this product
Our last series of synthetic benchmarks compare the hard drives in a series of server mixed-workloads with a queue depth of ranging from 1 to 128. Each of our server profile tests has a strong preference towards read activity, ranging from 67% read with our database profile to 100% read in our web server profile. In all of our mixed workloads, the Seagate Gen3 performed exceptionally. For each test, it ranked either first or second along with the Seagate Gen2. Overall, the SSHDs performed significantly better than standard HDD’s. The Gen2’s slight performance advantage over the Gen3 comes from its 7,200 RPM spins compared to the Gen3’s 5,400 RPM (with Seagate’s standardization of laptop drives to 5,400 RPM). 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. SMR allows vendors to offer higher capacity without the need to fundamentally change the underlying recording technology.
The first is our database profile, with a 67% read and 33% write workload mix primarily centered on 8K transfer sizes. 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). Along with the change in nomenclature, Seagate implemented several platform changes to the SSHD Gen3 as well. While Gen2 provided users with 8GB SLC NAND, the Gen3 switched to 8GB MLC NAND. This modification does sacrifice some endurance, but the majority of users won’t deplete the endurance for the lifetime of the drive’s warranty making it mostly a non-issue. By switching to MLC NAND, Seagate is also able to reduce the Gen3 production cost greatly and thus lower the price significantly. Seagate has also decided to streamline their laptop drive production by exclusively offering 5,400 RPM drives. So while the Gen2 had a 7,200 RPM drive, the Gen3 spins at 5,400 RPM. Thanks to improvements in the cache technology, the cache miss pain of hitting the slower spinning drive should be mitigated, but regardless, hitting the drive without flash assistance is going to hurt a little more than in the Gen2 drive.All 2-6TB external drives - Elements, My Book, Easystore, etc. Precise models vary and are not guaranteed; assume SMR in capacities below 8TB. WD platter sizes 2.5 niche products: https://rml527.blogspot.com/2010/10/hdd-platter-database-western-digital-25_2393.html
n) HiSMRFs research file system for SMR: 2014, https://www.researchgate.net/public...rmance_file_system_for_shingled_storage_array 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 For those looking for the highest volumetric capacity around without breaking the bank, you simply can’t go wrong with a 5TB portable drive. Cost-conscious consumers with bulk storage requirements need to rely on hard drives. On the portable front, HDD vendors have been using 2.5" drives in external bus-powered enclosures to serve the market. Seagate was the first vendor to put out a 5TB portable bus-powered drive, and Western Digital recently introduced a slew of 5TB models of their own. Similar to Seagate, Western Digital has also adopted SMR platters for their portable hard drives over the last couple of generations. Western Digital sent across a review sample of the 5TB My Passport Portable External Hard Drive recently. Introduction and Product ImpressionsIn 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. Seagate platter sizes 2.5": https://rml527.blogspot.com/2010/09/hdd-platter-database-seagate-25.html BarraCuda — Seagate's drive-reliability data simply speaks for itself, and the BarraCuda family is often recognised by leading publications and customers
Het volgende scherm is een waarschuwingsscherm. Lees de inhoud zorgvuldig door en selecteer Volgende als u akkoord gaat. Anandtech lists Seagate 2.5" Barracuda as SMR: https://www.anandtech.com/show/1075...5-mobile-hard-drives-with-up-to-5-tb-capacity
62 Comments
q) Toshiba presentation on SMR technology: 2015, https://www.toshiba.co.jp/tech/review/en/01_02/pdf/a08.pdf In het volgende scherm wordt de licentieovereenkomst weergegeven. Als u akkoord gaat, klikt u op Ik ga akkoord en klikt u vervolgens op Volgende. Voer SeagateFirmwareUpdate_SeaFlash_Dell_Kahuna_UUU_FDL_KernelV4.7_New_Config_09-28-2016_13-54-18.exe uit als beheerder. With any laptop drive, power consumption is an important factor for users. The key sources of power draw get narrowed down to either the bright screen or the storage device used. In the next test, we record the average power consumed over a small range of synthetic benchmarks. For reference, Seagate lists an average idle power rate of 0.9 watts and an active seek rate of 2.5 watts. The portable bus-powered external hard drive market is served by all three HDD vendors - Seagate, Western Digital, and Toshiba. Seagate has been making use of SMR in the recent past for this segment. Western Digital is known for being coy about divulging the technology used inside its consumer products. It turns out that WD has also been using SMR technology since last 2016 in its external hard drives. In response to our specific query, WD officially confirmed the use of SMR platters in the hard drive inside the WD My Passport 5TB 2019 edition.
Great Deal 
New Comment