Re: [gentoo-user] OT: btrfs raid 5/6

[Wols Lists]

On 07/12/17 14:53, Frank Steinmetzger wrote:
> When I configured my kernel the other day, I discovered network block
> devices as an option. My PC has a hotswap bay[0]. Problem solved. :) Then I
> can do zpool replace with the drive-to-be-replaced still in the pool, which
> improves resilver read distribution and thus lessens the probability of a
> failure cascade.

Or with mdadm, there's "mdadm --replace". If you want to swap a drive
(rather than replace a failed drive), this both preserves redundancy and
reduces the stress on the array by doing disk-to-disk copy rather than
recalculating the new disk.

Cheers,
Wol