On 10/25/2016 11:54 AM, Gordon Messmer wrote:
If you built a RAID0 array of RAID6 arrays, then you'd fail a disk by marking it failed and removing it from whichever RAID6 array it was a member of, in the same fashion as you'd remove it from any other array type.
FWIW, what I've done in the past is build the raid 6's with mdraid, then use LVM to stripe them into a volume group.