From: Robert Hancock <hancockrwd@gmail.com>
To: dhdurgee@verizon.net
Cc: Jeff Garzik <jgarzik@pobox.com>, linux-ide@vger.kernel.org
Subject: Re: SATA II NCQ and multi-port support for ICH7
Date: Wed, 22 Jul 2009 12:04:02 -0600 [thread overview]
Message-ID: <4A675492.9060106@gmail.com> (raw)
In-Reply-To: <0KN6003ZATOVGH70@vms173017.mailsrvcs.net>
On 07/22/2009 07:15 AM, dhdurgee@verizon.net wrote:
> I have recently purchased an Areca ARC-5020 external eSATA II RAID to
> connect to my system. This unit supports ICH NCQ and multi-port for
> multiple volumes. I have connected it to my Intel DG41TY mainboard, which
> has the Intel 82801GB I/O Controller Hub (ICH7), but I find I am only
> seeing the first volume and the unit shows NCQ is inactive.
...
> So NCQ is detected on the RAID unit but is not enabled and only one of the
> two volumes is being seen. Am I missing something that needs to be
> enabled for the driver to support the advanced features? Is my
> configuration loading the proper driver? If not, how can I load it?
The SATA controller is in the legacy PIIX mode which doesn't support
most SATA-specific features. You need to switch it into AHCI mode
(should be a BIOS setting for it somewhere) and then the ahci driver
will get used instead of ata_piix.
next prev parent reply other threads:[~2009-07-22 18:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-22 13:15 SATA II NCQ and multi-port support for ICH7 dhdurgee
2009-07-22 16:49 ` Jeff Garzik
2009-07-23 5:24 ` Tejun Heo
2009-07-24 13:16 ` Bjørn Mork
2009-07-24 16:22 ` Jeff Garzik
2009-07-22 18:04 ` Robert Hancock [this message]
[not found] <4A68CF40.1050708@kernel.org>
2009-07-24 12:02 ` dhdurgee
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