Chapter 55. Clustering
Data corruption occurs on RAID 10 reshape on top of VDO with el7 kernel.
RAID 10 reshape (with both LVM and
mdadm) on top of VDO corrupts data and can eventually trigger the raid10.c:1011 kernel bug. Stacking RAID 10 (or other RAID types) on top of VDO does not take advantage of the deduplication/compression capabilities of VDO and is not recommended. (BZ#1528466, BZ#1530776)