[NTLUG:Discuss] what IS the fine line between RAID 0+1 and RAID10

[Robert Pearson]

On 5/24/07, Richard Geoffrion <ntlug at rain4us.net> wrote:
> Stuart Johnston wrote:
> > Richard Geoffrion wrote:
> >
> >> So what fundamental piece of information am I missing that allows me to
> >> understand why RAID-10 is different from RAID 0+1?
> >>
> >
> > The main practical difference is that RAID 0+1 can never survive loosing
> > more than 1 disk at a time.
> Hmmm... I MAY be getting a clue......  Still it would seem that ...OH OH
> OH!! I get it!.
>
> Well in this four disk " RAID 10 " (<-- note the quotes..) set, it's
> gonna be hard to determine just how this particular RAID was setup.. but
> I think I understand it when taken to a system greater than FOUR disk.
> Even with four disks... I think I have it.
>
> OK.. thanks for the wiki article.  I didn't find that one when I
> searched.  AWESOME.
>
> --
> Richard

FYI... in case your Google search missed these URLs
"RAID Levels 0+1 (01) and 1+0 (10) - The PC Guide"
<<http://www.storagereview.com/guide2000/ref/hdd/perf/raid/levels/multLevel01.html>>
"RAID 0+1 vs. RAID 1+0 and SVM"
http://blogs.sun.com/andresblog/date/20050614