[linux-lvm] raid10 to raid what? - convert

Stuart D. Gathman stuart at gathman.org
Tue Oct 17 21:21:48 UTC 2017

On Tue, 17 Oct 2017, Stuart D. Gathman wrote:

> thanks!), and is not the same as raid1+0 (raid1 on top of raid0).

Sorry, that is raid0 on top of raid1.  With raid1 on top, then after
the first disk failure, the second failure has a 66% chance of
destroying the data.  With raid0 on top, the second failure has only
a 33% chance of destroying the data.

Raid10 is a way of striping the data with redundancy in a single layer.

 	      Stuart D. Gathman <stuart at gathman.org>
"Confutatis maledictis, flamis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.

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