Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: Best Low-cost IDE RAID Solution For 2.6.x? (OT?) | Date | 28 Dec 2003 15:05:13 -0800 |
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Followup to: <1072647938.10298.3.camel@laptop.fenrus.com> By author: Arjan van de Ven <arjanv@redhat.com> In newsgroup: linux.dev.kernel > > On Sun, 2003-12-28 at 22:35, Johannes Ruscheinski wrote: > > > Fisrt of all: thanks for the advice Joel! Two questions: why not use the > > hardware raid capability of the Promise tx4000 and if we'd use software > > raid instead, what would be the CPU overhead? > > be careful, almost all ata raid controllers out there are *software > raid* hidden in a binary only driver. Also generally the on-disk format > of these is quite unfortionate resulting in slower access than linux > software raid can do... >
Not to mention, well, *proprietary*. Consider this: with Linux swraid, you don't have to worry about your manufacturer discontinuing your product or going out of business; as long as you can connect your disks to a CPU using any kind of controller you can recover your data. If a proprietary RAID controller croaks, and you can't get another one of the same brand/model, you might have no more data...
-hpa
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