Date: Wed, 21 Jul 2010 23:59:41 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Dan Langille <dan@langille.org> Cc: Adam Vande More <amvandemore@gmail.com>, freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: Using GTP and glabel for ZFS arrays Message-ID: <20100722065941.GA6666@icarus.home.lan> In-Reply-To: <4C47E610.2040409@langille.org> References: <4C47B57F.5020309@langille.org> <AANLkTimbYGpC0aYGnE61J5ZopQVD9m8hrz07CZAnsvsq@mail.gmail.com> <AANLkTikwNEXpTz-hpKLta0T3Lx67nRHtOaVLp_c7C8BI@mail.gmail.com> <4C47E610.2040409@langille.org>
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On Thu, Jul 22, 2010 at 02:32:48AM -0400, Dan Langille wrote: > On 7/21/2010 11:39 PM, Adam Vande More wrote: > >On Wed, Jul 21, 2010 at 10:34 PM, Adam Vande More <amvandemore@gmail.com > ><mailto:amvandemore@gmail.com>> wrote: > > >Also if you have an applicable SATA controller, running the ahci module > >with give you more speed. Only change one thing a time though. > >Virtualbox makes a great testbed for this, you don't need to allocate > >the VM a lot of RAM just make sure it boots and such. > > I'm not sure of the criteria, but this is what I'm running: > > atapci0: <SiI 3124 SATA300 controller> port 0xdc00-0xdc0f mem > 0xfbeffc00-0xfbeffc7f,0xfbef0000-0xfbef7fff irq 17 at device 4.0 on > pci7 > > atapci1: <SiI 3124 SATA300 controller> port 0xac00-0xac0f mem > 0xfbbffc00-0xfbbffc7f,0xfbbf0000-0xfbbf7fff irq 19 at device 4.0 on > pci3 > > I added ahci_load="YES" to loader.conf and rebooted. Now I see: > > ahci0: <ATI IXP700 AHCI SATA controller> port > 0x8000-0x8007,0x7000-0x7003,0x6000-0x6007,0x5000-0x5003,0x4000-0x400f > mem 0xfb3fe400-0xfb3fe7ff irq 22 at device 17.0 on pci0 > > Which is the onboard SATA from what I can tell, not the controllers > I installed to handle the ZFS array. The onboard SATA runs a > gmirror array which handles /, /tmp, /usr, and /var (i.e. the OS). > ZFS runs only on on my /storage mount point. The Silicon Image controllers have their own driver, siis(4), which uses AHCI as well. It's just as reliable as ahci(4), and undergoes similar/thorough testing. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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