frodr Posted February 26, 2021 Share Posted February 26, 2021 Hi, Seagate have launched a new disk technology they call MACH.2. Main USP is double transfer rate. More about MACH.2 here and here. In the articles I read Seagate have joined Microsoft on this. What are the chances this technology would be supported in Linux kernel? If so, what is needed in addition use it in Unraid? Quote Link to comment
JorgeB Posted February 27, 2021 Share Posted February 27, 2021 These are SAS only for now and the foreseeable future, also, and as far as I understand, they are presented to the OS as two 7TB drives, using dual LUNs, so no performance gains with Unraid and if one disk failed you'd lose two assigned drives. 1 Quote Link to comment
JorgeB Posted December 16, 2022 Share Posted December 16, 2022 Now these could be interesting, they've recently announced Gen2 with 16 and 18TB models, and now there will be a SATA version, which unlike the SAS models will present a single volume to the OS, problem will likely be the price: 1 Quote Link to comment
mgutt Posted September 10, 2023 Share Posted September 10, 2023 On 12/16/2022 at 3:29 PM, JorgeB said: which unlike the SAS models will present a single volume to the OS If I understand this post correctly the first half of the disk is actuator 1 and the second half of the disk is actuator 2: https://forum.level1techs.com/t/how-to-zfs-on-dual-actuator-mach2-drives-from-seagate-without-worry/197067/61 So even the SATA version is not compatible with Unraid (it works, but it won't enhance the performance). At first Limetech would need to create a complete different variant of the Parity creation / reading like "every second block is written/read to/from the second half of the disk". And finally I don't think this is really worth the effort. A Samsung 8TB QVO is cheaper and combined with an 8TB NVMe as parity much faster in any aspect. 1 Quote Link to comment
Lolight Posted September 11, 2023 Share Posted September 11, 2023 6 hours ago, mgutt said: So even the SATA version is not compatible with Unraid (it works, but it won't enhance the performance). Quote Link to comment
mgutt Posted September 11, 2023 Share Posted September 11, 2023 The speed came from the RAID, not the Dual Actuator. Quote Link to comment
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