Date: Wed, 26 Mar 2008 08:38:58 +1300 From: Tom Munro Glass <gentoo@tmgcon.com> To: freebsd-questions@freebsd.org Subject: Re: RAID on HP ML110 G5 Message-ID: <200803260838.59061.gentoo@tmgcon.com> In-Reply-To: <47E8C622.8060300@skoberne.net> References: <200803251428.41691.gentoo@tmgcon.com> <47E8C622.8060300@skoberne.net>
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On Tue, 25 Mar 2008, Nejc =8Akoberne wrote: > Hey Tom, > > > I would like to run FreeBSD 7 on a HP ML110 G5. I understand from past > > posts to this list that the ML110 series is FreeBSD friendly, but what > > about RAID 1 using the on-board SATA controller? Will this work and how > > do you set this up? > > I have just configured a ML110G5 with FreeBSD 7 a few days ago. If you try > to make a BIOS RAID (create an array in RAID controller BIOS), then FreeB= SD > won't recognize it as it does not understand the metadata format which > controller BIOS uses to manage the arrays. What you have to do is (having > RAID mode in BIOS still enabled) boot the server with FreeBSD 7 CD and th= en > go to Fixit utility. There you can create "hardware" (see previous posts > about this being hardware RAID) RAID with "atacontrol" utility. This way, > FreeBSD will use its own metadata format for the array and will recognize > such arrays as "arX" devices. Restarting the box you can then install > FreeBSD easily on these arX devices like on normal adX or daX devices. So > remember, this is not the "real" FreeBSD software RAID since it is not > controlled by FreeBSD kernel but by the SATA/RAID controller. For example, > I have 4 drives and I created RAID-0 (stripes) with atacontrol and will > merge them (in a few days) into a RAID-1 gmirror. > > Hope that helps, > Nejc Thanks to all who replied. Since it is possible to use the SATA RAID but it= =20 isn't true hardware RAID, is it better to use the SATA RAID or use gmirror? Regards Tom
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