> From: Rich Pieri <[email protected]> > Subject: Re: [Discuss] External USB bridge to SSD
> USB Mass Storage does not provide for TRIM/UNMAP. You need a USB > adapter that specifically implements USB Attached SCSI Protocol (UASP) > *and* the host needs to recognize the device as a UASP device. > [various useful advice snipped; see the previous message] At some point I thought I'd heard that the various various newer device attachments used the SCSI command protocol. Which certainly would be a good design, since you wouldn't have to redesign all that stuff, and just piggy-back on SCSI, letting them update the protocol. If that was true, a USB bridge would just pass through e.g. trim. But I'm wrong, and every piece of adapter has to be checked individually for whatever features I want to use. Dale _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
