From: Michael Stapelberg <michael+lkml@stapelberg.de>
To: Matt Keenan <tank.en.mate@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>, linux-kernel@vger.kernel.org
Subject: Re: WD SATA disk works on nv but not on ahci
Date: Wed, 2 Apr 2008 21:11:51 +0200 [thread overview]
Message-ID: <20080402191151.GT11237@mx01> (raw)
In-Reply-To: <1207161934.2042.3.camel@bazbox.opcode-solutions.com>
Hi Matt,
* [02.04.08 20:50]:
> What's your NCQ queue length for these drives?
I thought it's mentioned in the dmesg-output, but I just plugged the drive in
and re-checked:
> # for dev in /sys/block/sd*/device/queue_depth ; do echo -n "$dev: " ; \
> cat $dev ; done
/sys/block/sda/device/queue_depth: 1
/sys/block/sdb/device/queue_depth: 1
This means NCQ is disabled for this device AFAIK.
Best regards,
Michael
prev parent reply other threads:[~2008-04-02 19:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-02 17:34 WD SATA disk works on nv but not on ahci Michael Stapelberg
2008-04-02 18:45 ` Matt Keenan
2008-04-02 19:11 ` Michael Stapelberg [this message]
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