From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <322fa0e8c0ed03f250cdcecaeec7040b@ladd.quanstro.net> <79ebf95bd05ebf52fc95480beb655e42@ladd.quanstro.net> <4EFE2F9F.9080405@0x6a.com> From: =?UTF-8?B?QXJhbSBIxIN2xINybmVhbnU=?= Date: Sat, 31 Dec 2011 19:40:29 +0200 Message-ID: To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [9fans] (no subject) Topicbox-Message-UUID: 52db4a16-ead7-11e9-9d60-3106f5b1d025 > the motivation behind my question is that it's not clear to me that there= is > such a thing as pure hardware raid. =C2=A0if someone knows of something t= hat > implements the entire read/write path without a cpu, even with a degraded > or rebuilding raid, i'd be very interested in that. Ahh, I see what you mean. I agree that probably there is no such thing as RAID purely implemented in hardware. I think for most people the hardware epithet is used to describe a black box where the user doesn't have access to it's internal gearing, be it hardware or software. A microwave is a hardware device for its users because the users don't need to care if the unit has firmware, discrete electronics or mechanical gears. Probably a better term would be to always use the term appliance, instead of this hardware/softare false dichotomy. > (see wiki's raid article.) Plan 9 wiki? It mentions SiL 3112 SATA, 3114 SATA/RAID and VIA 82C686, VT8237 SATA/RAID, strangely, under IDE section. I haven't found yet relevant information about the SiL stuff, but the VIA stuff is what Adaptec calls HostRAID and Linux fakeRAID. A Happy New Year! --=20 Aram H=C4=83v=C4=83rneanu