Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 15 Aug 2007 11:17:59 +0200
From:      =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To:        Simon 'corecode' Schubert <corecode@fs.ei.tum.de>
Cc:        freebsd-hackers@freebsd.org, Sven Hazejager <sven-freebsd@hazejager.nl>
Subject:   Re: How to stop attached USB device / send IRP_MN_REMOVE_DEVICE?
Message-ID:  <86fy2lgnqw.fsf@ds4.des.no>
In-Reply-To: <46C2B709.20604@fs.ei.tum.de> (Simon Schubert's message of "Wed\,  15 Aug 2007 10\:19\:21 %2B0200")
References:  <07081411265549.-1077952816@somehost.domainz.com> <20070814030833.49a7a030@soralx> <20070814041736.4c16f41e@soralx> <07081416114656.-1077948560@somehost.domainz.com> <86r6m5231w.fsf@ds4.des.no> <46C2B709.20604@fs.ei.tum.de>

next in thread | previous in thread | raw e-mail | index | archive | help
Simon 'corecode' Schubert <corecode@fs.ei.tum.de> writes:
> Dag-Erling Sm=C3=B8rgrav <des@des.no> writes:
> > All modern disks (since at least the early 1990s) automatically park
> > their heads when they lose power.  There is no need to do it in
> > software.
> So it seems that windows is switching off the power of the devices
> when you select "eject".  I can see that some users might feel more
> comfortable with this behaviour.

Yes, if only because it saves power and reduces noise (for USB-attached
mechanical drives at least).  Note that this also requires logic in the
enclosure to cut power to the drive when the device is detached; not all
enclosures do this.  Brand name drives (Maxtor OneTouch, Western Digital
Passport etc.) usually do, while cheap DIY enclosures usually don't.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?86fy2lgnqw.fsf>