From: Jeff Garzik <jeff@garzik.org>
To: Tim Small <tim@buttersideup.com>
Cc: linux-ide@vger.kernel.org, kristen.c.accardi@intel.com
Subject: Re: AHCI link power management and surprise hotplug
Date: Thu, 19 Mar 2009 14:06:55 -0400 [thread overview]
Message-ID: <49C289BF.8080602@garzik.org> (raw)
In-Reply-To: <49C22689.9050005@buttersideup.com>
Tim Small wrote:
> On a related topic, is there any way to do anything other than
> "surprise" removal with libata? It'd be nice to put a drive to sleep
> (e.g. with "hdparm -Y"), and ensure that nothing comes along and causes
> the drive to be reset and spin the drive attached to that SATA port back
> up prior to a removal and reinsertion.
>
> I'm assuming that physically unplugging a non-spinning drive is
> preferable to unplugging a spinning one from a drive longevity point of
> view (I use SATA drives as removable backup medium in some cases).
Unplugging the SATA cable is fine. I wouldn't yank power while it's
actively storing data, though.
Jeff
next prev parent reply other threads:[~2009-03-19 18:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-19 11:03 AHCI link power management and surprise hotplug Tim Small
2009-03-19 18:06 ` Jeff Garzik [this message]
2009-03-20 1:56 ` Tejun Heo
2009-03-20 17:42 ` Kristen Carlson Accardi
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