Messages in this thread | | | Date | Tue, 01 Aug 2006 12:41:59 -0500 | From | David Masover <> | Subject | Re: the " 'official' point of view" expressed by kernelnewbies.org regarding reiser4 inclusion |
| |
Gregory Maxwell wrote: > On 8/1/06, David Masover <ninja@slaphack.com> wrote: >> Yikes. Undetected. >> >> Wait, what? Disks, at least, would be protected by RAID. Are you >> telling me RAID won't detect such an error? > > Unless the disk ECC catches it raid won't know anything is wrong. > > This is why ZFS offers block checksums... it can then try all the > permutations of raid regens to find a solution which gives the right > checksum.
Isn't there a way to do this at the block layer? Something in device-mapper?
> Every level of the system must be paranoid and take measure to avoid > corruption if the system is to avoid it... it's a tough problem. It > seems that the ZFS folks have addressed this challenge by building as > much of what is classically separate layers into one part.
Sounds like bad design to me, and I can point to the antipattern, but what do I know? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |