On Fri, Mar 26, 2010 at 12:21 PM, Bob Friesenhahn < bfrie...@simple.dallas.tx.us> wrote:
> On Fri, 26 Mar 2010, Freddie Cash wrote: > >> >> Overly-simplified, a ZFS pool is a RAID0 stripeset across all the member >> vdevs, which can be >> > > Except that ZFS does not support RAID0. Wow, what part of "overly simplified" did you not read, see, understand, or parse? You even quoted it. I don't know why you guys persist with these absurd claims and continue to > use wrong and misleading terminology. > So, "mister I'm so much better than everyone because I know that ZFS doesn't use RAID0 but don't provide any actual useful info": How would you describe how a ZFS pool works for striping data across multiple vdevs, in such a way that someone coming from a RAID background can understand, without using fancy-shmancy terms that no one else has ever heard? (Especially considering how confused the OP was as to how even a RAID10 array works.) Where I come from, you start with what the person knows (RAID terminology), find ways to relate that to the new knowledge domain (basically a RAID0 stripeset), and then later build on that to explain all the fancy-shmancy terminology and nitty-gritty of how it works. We didn't all pop into the work full of all the knowledge of everything. What you guys are effectively doing is calling a mule a "horse" because it > has four legs, two ears, and a tail, like a donkey. > For someone who's only ever seen, dealt with, and used horses, then (overly simplified), a mule is like a horse. Just as it is like a donkey. From there, you can go on to explain how a mule actually came to be, and what makes it different from a horse and a donkey. And what makes it better than either. -- Freddie Cash fjwc...@gmail.com
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