Re: [PATCH] ahci: AHCI and RAID mode SATA patch for IntelCougar Point DeviceIDs

From: Henrique de Moraes Holschuh
Date: Fri Jan 15 2010 - 22:03:07 EST

On Thu, 14 Jan 2010, Robert Hancock wrote:
> > Maybe it is the silicon AHCI in ICH6R that is immature, and one is much
> > better of using it in IDE mode?
> That seems unlikely, since the Intel-provided Matrix Storage drivers
> for that controller on Windows will be using AHCI mode..

That doesn't say much.

If the change doesn't risk switching unaware users from IDE mode to AHCI, it
is not a problem. But if it does, why risk it? It is not like anyone that
wants hotplug and has an ICH6-R/M system won't have figured it out by now
how to get it to use AHCI, these are NOT new systems.

AHCI in ICH6R or ICH6M is not always an advantage. You don't want it on
ICH6-M in a laptop if it is not going to use the hotplug, for example. In
AHCI mode, the chip draws more power.

"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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