On Thu, 10 Mar 2005, Julien Plissonneau Duquene wrote:

> I do not know the details, but it seems that there is a limited support
> for SCSI hard drives in smartctl, and hdparm used to be able to perform
> some functions on regular SCSI disks (not tested recently).
> 
> Given the quality of 90% of firmware, I would rather have a "bypass"
> feature that allows user-space apps to send raw commands and read raw
> results than some poor SCSI->ATA then ATA->SCSI translation by the USB
> device. Not all ATA features could be translated anyway.
> 
> There are several goals actually:
> (1) power saving - spin up(down) the disk when (u)mounting,
>     configure idle spindown timeout
> (2) disk condition monitoring - using SMART features
> (3) diagnostics/recovery - SMART, "security erase", proprietary commands
> 
> I am unable to do this with the USB to ATA adapters I currently use. Any
> progress is welcome.

Sorry, I don't know of any adapters with the necessary extensions.  (Or
maybe I do and don't realize it because the extensions are proprietary and
not publicly available...)

Alan Stern



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