[mythtv-users] [OT] USB enclosure with SMART support?

Marco Nelissen marcone at xs4all.nl
Mon Feb 26 02:08:24 UTC 2007

>This one time, at band camp, Marco Nelissen wrote:
>> Does anyone know if there is such a thing as a USB harddrive enclosure
>> that supports SMART? The 2 I've tried don't seem to pass SMART commands
>> to the drive, so smartctl just thinks the drive doesn't support it.
>No.  USB Mass Storage doesn't support the concept.  Try eSATA for 
>external enclosures.

As I understand it, it should only be a matter of the USB-to-SATA 
bridge passing the commands through to the device.  The USB mass
storage spec does provide for passthrough commands, AFAIK, however
it seems many (all?) USB-(S)ATA bridge chipset vendors have chosen
not to implement this since it's not mandatory.

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