Date: Thu, 4 Oct 2018 10:57:04 -0600 From: Warner Losh <imp@bsdimp.com> To: Allan Jude <allanjude@freebsd.org> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: AMD RAID support? Message-ID: <CANCZdfpxaie1GD%2Be%2Bb98qNSLHKJA0KvJCxdrXJdsJ9Ch6zm-Cw@mail.gmail.com> In-Reply-To: <5f37e214-ede9-fea8-6238-339a61c2af33@freebsd.org> References: <CACpH0MdMAOkD39YK52aFQJqmLj7jR-xfW2hCCei8_hzc7O=syQ@mail.gmail.com> <5f37e214-ede9-fea8-6238-339a61c2af33@freebsd.org>
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On Thu, Oct 4, 2018 at 10:37 AM Allan Jude <allanjude@freebsd.org> wrote: > On 2018-10-04 12:29, Zaphod Beeblebrox wrote: > > Are there any plans to support AMD RAID? > > > > AMD RAID is _like_ Intel RAID, but has a number of differences. One is > > that it requires UEFI (without UEFI it does not boot, at least). It > comes > > on/with AMD motherboards for Zen and Threadripper processors. It also > only > > supports RAID 0/1/10, that is: no support for 5/50. > > > > Also, unlike Intel RAID, at least initially, the raw disks don't seem to > > show up. That's not entirely true: On some motherboards, NVME RAID is > > supported and the NVME "disks" show up, but the SATA disks do not. > > > > Obviously this is all in the service of mounting the dual-boot windows > > drive. > > This sounds like there's two parts here. The first is that SATA disks aren't showing up. This suggests a different HBA / driver might be needed for them. Or some hacks to ahci to 'unlock' the ports that's preventing discovery. The GEOM issue is just a small matter of book keeping :) Warner
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