(original article)

RAID10 reshaping

25 September 2010, 10:12 UTC

Hi, here are some reshaping options involving RAID10 that I would really like to have, and my understanding of how they would work:

- 2-drive RAID1 to 2-drive near-RAID10 and back; should be trivial

- 2-drive RAID0 to 4-drive near-RAID10 degraded to 2 drives, and back; should be trivial too

- changing the number of devices, especially 2->4; that's more difficult, but it's already done for RAID5 and 6 and I think it's not very different

- changing the RAID10 layout, probably not harder than the above

- changing the size of devices for near layout; relatively easy I guess

Thanks for the great work!