On Wed, Jul 10, 2019 at 04:46:35PM +0800, Xiao Ni wrote: [...] > Yes. I learned about this from this article > https://securitypitfalls.wordpress.com/2018/05/08/raid-doesnt-work/ > As this article pointed, raid6 has problem to support this. The patch which > I sent recent should fix this problem. Interesting article. In any case, RAID-6 offers a way to find this type of unreported errors, albeit pro-actively. "raid6check" implementents the considerations of H. Peter Anvin in the paper: https://mirrors.edge.kernel.org/pub/linux/kernel/people/hpa/raid6.pdf Silent errors can be detected, in which drive, if one only is present (per stripe). bye, -- piergiorgio
