Date: Fri, 18 Feb 2005 23:37:23 -0800 From: Sandy Rutherford <sandy@krvarr.bc.ca> To: "Chad Leigh -- Shire.Net LLC" <chad@shire.net> Cc: Spades <spades@galaxynet.org> Subject: Re: raid1 Message-ID: <16918.60595.297759.953364@szamoca.krvarr.bc.ca> In-Reply-To: <5895876136a642eb60e73d6ebe87729c@shire.net> References: <421467C0.9060801@ant.uni-bremen.de> <d9175cad05021715128228c00@mail.gmail.com> <42159B2C.3000000@ant.uni-bremen.de> <200502181015.44103.karelj@kayjay.nl> <00b301c5164e$ae86b0d0$162dc2cb@astral> <5895876136a642eb60e73d6ebe87729c@shire.net>
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>>>>> On Fri, 18 Feb 2005 23:51:53 -0700, >>>>> "Chad Leigh -- Shire.Net LLC" <chad@shire.net> said: > On Feb 18, 2005, at 11:39 PM, Spades wrote: >> hi, my server hardware supports hardware raid, i installed it >> as per normal freebsd 5.3, however i see no difference >> in df. its using 2 x 160GB, what do i do during the installation >> to enable the raid? >> >> mobo: >> http://www.supermicro.com/products/motherboard/Xeon800/E7320/X6DVL- >> EG.cfm >> >> -bash-2.05b$ df >> Filesystem 1K-blocks Used Avail Capacity Mounted on >> /dev/ad4s1a 66008394 35424 60692300 0% / >> devfs 1 1 0 100% /dev >> ... > What do you expect to see? > A raid1 is a mirror set and to the OS would probably look like a single > drive if it truly is a HW raid This should be true of any hardware RAID level, not just RAID1. The HW RAID presents logical drives to the OS, which look like real drives to it. The caveat is that the RAID driver will appear as the disk type. I don't have any experience with SATA RAID, but on my server, which has a Mylex ExtremeRAID 1100 SCSI RAID card, a df gives: Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/mlxd0s1a ... /dev/mlxd0s1d ... /dev/mlxd0s1h ... /dev/mlxd0s1e ... /dev/mlxd0s1f ... /dev/mlxd0s1g ... /dev/mlxd1s1e ... /dev/mlxd1s1f ... /dev/mlxd1s1g ... /dev/mlxd2s1e ... mlx(4) is the driver for this card. The underlying hard drive structure doesn't look anything like the above, but this is irrelevant to the OS. Regarding your situation, I believe that your MB uses an Adaptec SATA controller. You should find out exactly what the controller is and if it is supported in "Hardware Notes". I would expect that if your controller is supported and found, then "ad" should be replaced by the relevant driver. Also, have a look at the dmesg output. There should be some sign that the OS is recognizing your RAID controller. Sandy
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