Changes between Version 2 and Version 3 of Ticket #9910, comment 16


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Timestamp:
Sep 6, 2018, 2:54:21 PM (6 years ago)
Author:
cb88

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  • Ticket #9910, comment 16

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    11All M.2 SSD's can optionally support SATA, however it's common for the faster ones to only support NVME without backward compatibility. Both B and M key interfaces support Sata, but even then there is no guarantee that the mobo or ssd supports both. I'd imagine in bios emulation of AHCI for purely NVME devices is almost nonexistant.
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    35B key = 2x PCIE + SATA (you have to check your drive and mobo specs)
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    79An M keyed drive is least likely to support SATA.
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    913Haiku should probably put Host Memory Buffer support for NVMe drives on the TODO list also. As it allows a massive speed, up for recent cheaper, and therefore common, "cacheless" drives. This basically means dedicating a chunk of memory to the SSD similar to integrated graphics. https://www.flashmemorysummit.com/English/Collaterals/Proceedings/2015/20150813_FJ31_Chen_Dorgello.pdf