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Cake day: October 28th, 2023

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  • Just curious, the durability of a SSD (relative to HDD) is driven by the amount of writes to the NAND Layer Cells. I’ve come across products from Kioxia and Solidigm+SK HYNIX on read-only optimised NAND SSD for enterprise/hyperscaler.

    Wouldn’t that make sense for clients to pivot towards these types of SSD for cold-storage when price decline fast enough.

    And with HDD, the speed be a consideration when running High-Performance Compute/AI stuff.

    Designed for modern IT infrastructures, 24G SAS (SAS-4) doubles effective bandwidth over 12Gb/s SAS (SAS-3). Featuring Kioxia’s 5th generation BiCS FLASH™ 3D flash memory, the PM7 Series delivers sequential read performance of up to 4.2Gigabytes (GB) per second (GB/s) and 720K random read IOPS, achieving approximately 20% performance improvement over the previous generation KIOXIA PM6 Series. The new Kioxia drives are available in capacities up to 30.72terabytes (TB), making them the industry’s highest capacity[2] 2.5-inch [3] SAS SSD.

    Additional features include:
    Dual-port to support redundancy for storage systems that require high reliability.
    Flash Die Failure Protection – a Kioxia feature that allows for transparent disabling of a failing flash chip, while maintaining full reliability at the SSD level.
    Endurances for a wide range of workloads; read-intensive (1DWPD) and mixed-use (3DWPD).
    Security options available[1]; sanitize instant erase (SIE), TCG Enterprise self-encrypting drive (SED) and SED with an additional security option that utilizes a security module validated by the FIPS 140-2 Cryptographic Module Validation Program. FIPS 140-3 validation for the security module is also in process and is expected to be completed in 2022.