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The old USB mass storage class was custom, but USB 3.0 and up enclosures should do UASP (USB Ander SCSI Protocol).
by formerly_proven 5y ago
The old USB mass storage class was custom, but USB 3.0 and up enclosures should do UASP (USB Ander SCSI Protocol).
- mmastrac 5y agoI assume you mean "USB Attached SCSI Protocol" :)
- userbinator 5y agoNo, it's always been SCSI: https://en.wikipedia.org/wiki/USB_mass_storage_device_class#Device_access https://en.wikipedia.org/wiki/USB_mass_storage_device_class#... UAS is yet another variant of passing SCSI commands through USB.
- formerly_proven 5y agoThanks, TIL. Always thought the new thing about UASP was direct SCSI support, but it actually seems like the main problem with BOT was it being fully synchronous, so only one request in flight at any given time.