From: Robert Trace <maillist@farcaster.org>
To: Matthias Prager <linux@matthiasprager.de>
Cc: djwong@us.ibm.com, linux-scsi@vger.kernel.org
Subject: Re: 'Device not ready' issue on mpt2sas since 3.1.10
Date: Mon, 09 Jul 2012 21:56:39 -0400 [thread overview]
Message-ID: <4FFB8BD7.4000904@farcaster.org> (raw)
In-Reply-To: <4FFB7575.4060603@matthiasprager.de>
On 07/09/2012 08:21 PM, Matthias Prager wrote:
>
> I haven't checked the scsi logging side, but about the only commands
> that wake up the disks are 'smartctl -a /dev/sda' and 'sg_start'
> (smartcl maybe issuing a START UNIT command on it's own).
smartctl -a does appear to wake the disks. The scsi log shows an
IDENTIFY and then several ATA passthrough commands (one of which takes
~10 seconds to complete). So, I don't see an explicit START UNIT, but
one of those ATA commands which I didn't decode could certainly trigger
the wakeup.
-- Rob
next prev parent reply other threads:[~2012-07-10 1:56 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-22 11:19 'Device not ready' issue on mpt2sas since 3.1.10 Matthias Prager
2012-07-09 14:40 ` Matthias Prager
2012-07-09 19:37 ` Robert Trace
2012-07-09 20:45 ` Darrick J. Wong
2012-07-09 22:24 ` Robert Trace
2012-07-10 0:21 ` Matthias Prager
2012-07-10 1:56 ` Robert Trace [this message]
2012-07-10 16:54 ` Darrick J. Wong
2012-07-10 0:12 ` Matthias Prager
2012-07-10 1:51 ` Robert Trace
2012-07-10 23:27 ` Robert Trace
2012-07-11 12:19 ` Matthias Prager
2012-07-11 13:48 ` Matthias Prager
2012-07-17 18:09 ` Tejun Heo
2012-07-17 19:39 ` Matthias Prager
2012-07-17 20:01 ` Tejun Heo
2012-07-21 12:15 ` Matthias Prager
2012-07-22 17:31 ` Tejun Heo
2012-07-22 23:14 ` Matthias Prager
2012-07-23 15:26 ` Tejun Heo
2012-07-24 22:04 ` Matthias Prager
2012-07-25 10:26 ` Reddy, Sreekanth
2012-07-25 14:19 ` James Bottomley
2012-07-25 17:17 ` Tejun Heo
2012-07-25 19:55 ` James Bottomley
2012-07-25 23:56 ` Matthias Prager
2012-07-26 19:16 ` Robert Trace
2012-08-16 18:26 ` Robert Trace
2012-08-16 20:24 ` Matthias Prager
2012-08-16 20:33 ` Robert Trace
2012-07-25 22:35 ` tomm
2012-07-26 19:20 ` Robert Trace
2012-07-09 22:08 ` NeilBrown
2012-07-10 0:03 ` Matthias Prager
-- strict thread matches above, loose matches on Subject: below --
2015-11-27 10:28 Felix Matouschek
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