ATA TRIM Documentation?

NTFSD
1

Hi,

Anyone have an idea where I can find a link to the TRIM specification? I’ve been googling to no avail. I’m basically looking for something that would tell me what structure I’d need to send as a raw IOCTL to the ATA device to trigger a TRIM (assuming hardware/firmware support, obviously).

Much appreciated!

2

What about MSDN Library? I think it can say something about TRIM, but probably this is Win7-only.

–
Maxim S. Shatskih
Windows DDK MVP
xxxxx@storagecraft.com
http://www.storagecraft.com

wrote in message news:xxxxx@ntfsd…
> Hi,
>
> Anyone have an idea where I can find a link to the TRIM specification? I’ve been googling to no avail. I’m basically looking for something that would tell me what structure I’d need to send as a raw IOCTL to the ATA device to trigger a TRIM (assuming hardware/firmware support, obviously).
>
> Much appreciated!
>

3

If you are looking for the full details, the ATA TRIM specification is
part of the Data Set Management (DSM) command which is part of the ATA
protocol specification (if memory is working this morning). The
official keeper of the ATA protocol is the T13 working group which is
found at http://www.t13.org. I believe the draft documents are free
but they want you to pay for standards documents. T13 is part of
INCITS.

-Robert.

On Fri, Jul 16, 2010 at 5:08 PM, Maxim S. Shatskih
wrote:
> ? ?What about MSDN Library? I think it can say something about TRIM, but probably this is Win7-only.
>
> –
> Maxim S. Shatskih
> Windows DDK MVP
> xxxxx@storagecraft.com
> http://www.storagecraft.com
>
> wrote in message news:xxxxx@ntfsd…
>> Hi,
>>
>> Anyone have an idea where I can find a link to the TRIM specification? I’ve been googling to no avail. I’m basically looking for something that would tell me what structure I’d need to send as a raw IOCTL to the ATA device to trigger a TRIM (assuming hardware/firmware support, obviously).
>>
>> Much appreciated!
>>
>
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–
Robert Randall | xxxxx@gmail.com