kern/133593: [ata] `atacontrol spindown` won't affect disk until some data is read from it

[Dmitry Marakasov]

The following reply was made to PR kern/133593; it has been noted by GNATS.

From: Dmitry Marakasov <amdmi3 at amdmi3.ru>
To: Bruce Cran <bruce at cran.org.uk>
Cc: bug-followup at FreeBSD.org
Subject: Re: kern/133593: [ata] `atacontrol spindown` won't affect disk
	until some data is read from it
Date: Sat, 11 Apr 2009 16:36:31 +0400

 * Bruce Cran (bruce at cran.org.uk) wrote:
 
 > This is documented as the way the spindown command works.  From
 > atacontrol(8):
 > 
 > spindown   Set or report timeout after which the device will be spun
 > down. To arm the timeout the device needs at least one more request
 > after setting the timeout.  To disable spindown, set the time- out to
 > zero.  No further actions are needed in this case.
 
 Oh, thanks, didn't notice that.
 
 Then maybe it's possible to make atacontrol make some dummy
 request after the timeout is set?
 
 -- 
 Dmitry Marakasov   .   55B5 0596 FF1E 8D84 5F56  9510 D35A 80DD F9D2 F77D
 amdmi3 at amdmi3.ru  ..:  jabber: amdmi3 at jabber.ru    http://www.amdmi3.ru