[Discuss] On Btrfs raid and odd-count disks

[Edward Ned Harvey (blu)]

> From: discuss-bounces+blu=nedharvey.com at blu.org [mailto:discuss-
> bounces+blu=nedharvey.com at blu.org] On Behalf Of joe at polcari.com
> 
>   How does raid 1 with an odd number of disks earn the distinction of being
> called RAID?If you lose one disk, you've lost data. Any disk is a single point of
> failure. What's the point?

You're confusing raid1 (mirroring) with raid0 (striping)

btrfs raid1 is more like raid1-e, where all data is redundantly stored on any 2 disks, selected from N disks in the set.