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Date: Sat, 12 Jan 2013 12:22:51 -0600
Message-ID: <CA+tpaK3ut569jFCvrTavk5XVdr0MPDwZ-trw7=M8pDQqo0PG8g@mail.gmail.com>
Subject: Re: SATA disk disappears
From: Adam Vande More <amvandemore@gmail.com>
To: Warren Block <wblock@wonkity.com>
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Cc: freebsd-hackers@freebsd.org,
 Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
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On Sat, Jan 12, 2013 at 12:10 PM, Warren Block <wblock@wonkity.com> wrote:

> On Sat, 12 Jan 2013, Warren Block wrote:
>
>  Hmm.  The green drives are supposed to go to sleep for power saving, and
>> then there's a multiple-second delay when they have to spin back up on
>> access. That should not be a problem for gmirror, but maybe it is.
>> sysutils/ataidle can turn on the spindown.  Some drives do not accept that
>> command, or claim to accept it but ignore it.  Worth a try, though.
>>
>
> Make that: sysutils/ataidle can turn *off* the spindown.
>
>
Maybe just bumping kern.cam.ada.default_timeout to 45 or something might
help while still allowing drive to function as designed.


-- 
Adam Vande More