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Re: fc10 and raid-10



Jeroen van Meeuwen wrote:
> Bill Davidsen wrote:
>> The Fedora installer has insisted on requiring four drives for raid-10
>> install, and then not using raid-10, but rather raid-1+0 which is
>> *NOT* the same thing.
> 
> http://en.wikipedia.org/wiki/RAID#Nested_levels

ah, but...

http://en.wikipedia.org/wiki/Non-standard_RAID_levels

See the Linux MD RAID 10 section.
(or man md, if you'd prefer)

It is still (at its most basic) effectively RAID 1+0, but doesn't
require an even number of disks and can do some funky things with layout
and number of (near or far) copies of each chunk.

this is what
mdadm -C /dev/md0 -l 10 -n4 /dev/sd{a,b,c,d}1
would do, for example.

As opposed to manually creating 2 mirrors and striping over them.


Stuart

-- 
Stuart Sears RHCA etc.
"It's today!" said Piglet.
"My favourite day," said Pooh.


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