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В кластер входят документы, описывающие конкретные методы магнитной записи данных на жестких дисках и их влияние на характеристики накопителей.
Общие признаки: HDD, технология HAMR, технология SMR, емкость накопителей, производительность жестких дисков
Группа выше: Жёсткие диски: устройство и надёжность
Смысл: The main idea is to explain how Seagate's SMR technology enables the creation of ultra-high-capacity 22TB HDDs and to clarify that these drives are specialized tools for archival (cold) storage rather than general-purpose high-performance computing.
Seagate has released 22TB SMR hard drives that offer massive storage for cold data but feature lower write performance due to their overlapping track architecture.
Смысл: The main idea is that Seagate is overcoming the physical limits of traditional magnetic recording by implementing laser-assisted heating (HAMR) to enable HDD capacities of 30TB and more for the enterprise market.
Seagate is launching 30TB+ HDDs using laser-assisted magnetic recording (HAMR) technology to dramatically increase storage density for data centers.
Смысл: The main idea is that HDD manufacturers are deceptively selling SMR drives as standard drives, and some regional media outlets are compounding this problem by publishing false information that claims these drives are suitable for RAID/NAS, when they are actually prone to failure in such environments.
Major HDD manufacturers are stealthily replacing CMR drives with inferior SMR drives, while some Russian tech media is falsely claiming these drives are suitable for NAS/RAID setups.
Смысл: The main idea is that while Seagate's new HAMR technology pushes the physical boundaries of storage capacity, these advancements are insufficient to reverse the overall market decline of HDDs as SSDs continue to dominate due to cost-efficiency and performance.
Seagate's new 30TB+ HAMR hard drives are a technical milestone for the enterprise sector but cannot stop the broader market shift toward SSDs.
Смысл: The main idea is to educate users on how to empirically identify SMR hard drives through performance testing, as manufacturers often omit this critical information which affects drive suitability for certain tasks.
The article describes how to identify SMR hard drives using specific read/write performance tests since manufacturers often hide this technology's presence.
Смысл: The main idea is to warn users, especially those using ZFS, about the performance pitfalls of SMR hard drives and provide a verifiable list of SMR models to avoid for write-intensive tasks.
A technical guide and database identifying SMR hard drives and explaining why they should be avoided in ZFS and write-heavy environments.