REQUEST SENSE is also used as an independent command to determine the power state of the device.
 
See the description of the REQUEST SENSE command in SPC.
 
    Fred Knight
 
 


From: Mark Overby [mailto:moverby@nvidia.com]
Sent: Wednesday, June 25, 2008 10:06 PM
To: Eddy Quicksall; t10@t10.org
Subject: Re: using Request Sense

For protocols that use autosense, probably not.
For protocols that do not have autosense, you bet. (There are quite a few wide spread protocols that do not have autosense capability).


On 6/25/08 6:51 PM, "Eddy Quicksall" <Quicksall_SCSI@bellsouth.net> wrote:

Since some protocols use autosense then the sense data will be cleared when a command creates the condition and request sense will just get back "no sense".
 
Is there a case where request sense is still useful?
 
Eddy


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