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
