Date: Sun, 16 Sep 2007 16:15:46 -0400 From: "Maxim Khitrov" <mkhitrov@gmail.com> To: "Howard Goldstein" <hg@queue.to> Cc: freebsd-stable@freebsd.org Subject: Re: Question regarding Intel ICH7 motherboard and integrated RAID Message-ID: <26ddd1750709161315s147e894ag3460a9102e0096c8@mail.gmail.com> In-Reply-To: <46ED8817.3040400@queue.to> References: <20070915223649.GA6439@FS.denninger.net> <46ED8817.3040400@queue.to>
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On 9/16/07, Howard Goldstein <hg@queue.to> wrote: > Karl Denninger wrote: > > Hi folks; > > > > I have a new Intel ICH7 board here that has Quad-core support. > > > > It works well EXCEPT.... > > > > It has an on-board RAID controller with some internal buffer memory. > > There's a known issue with an interrupt storm when the ICH7R is > configured for AHCI or RAID, and a pr was filed back in July(don't have > the number, search for interrupt storm on atapci1+). The suspicion was > that some peripheral no one has identified yet is hammering the apic and > we can't mask it. > > The workaround is to set the BIOS for IDE mode. It's a bit of a drag > because SATA-II mode isn't reached when in IDE mode, only in AHCI (and > RAID?) mode. If you don't panic when you set it for IDE mode then > you've probably run into the same problem. > > On the plus side FreeBSD on the Q6600 *rocks* and our geom stuff does > the RAIDdy stuff nicely for a software solution. I sympathize with you > as I spent most of the day yesterday trying to work this same problem. Does this issue affect ICH9R as well? I'm about to get Gigabyte's GA-P35-DQ6 motherboard (also with Q6600) and was planning on configuring RAID10 array using the on-board ICH9R chipset. Are you saying that this doesn't current work (on 7-CURRENT), or that there are performance issues with such setup? I need to be able to dual-boot Win XP on the machine, so my plan was to get 4 320GB drives (later expanded to 6), put them into RAID10 array and that way get good redundancy and performance in both operating systems. Would you suggest I go about doing this some other way?
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