Re: LVM over RAID, or plain disks? A:"Yes" = best of both worlds?

[hansbkk@gmail.com]

2010/11/29 Keld Jørn Simonsen <keld@keldix.com>:
>> I can see how RAID6 is simpler than RAID10, but compared to RAID1?
>
> Hmm, does not compute by me. RAID1 and RAID10 are the same in complexity,
> RAID10 is just a modern RAID1, and should actually have been called
> RAID1.

My understanding is that if I use RAID10 on a single pair of disks
then that is literally the same as RAID1. These to me are very simple
in that I can take either one of the pair and mount it on any normal
machine and get at the data without doing anything special.

However, if I have my six disks configured as a single RAID10 array, I
believe this is no longer true - the data from (at least the larger
of) the files has been distributed over all six disks, correct?

Now compare putting LVM on top of this array, compared to three RAID1
pairs on the one hand and a RAID6 array on the other (third) hand :)

If I were trying to recover the data using the latest version of a
LiveCD - say Fedora or Knoppix, which would be easier?

I'm not trying to score any points, it's a genuine question.
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