[ale] read after write verify?, data scrubbing procedures

[mike at trausch.us]

On 10/25/2012 06:33 PM, JD wrote:
> On 10/25/2012 04:43 PM, Ron Frazier (ALE) wrote:
>> >My first question is, does a HDD do a read after write verify by default?
>
> The only file system that I've heard of that does actually validate that what
> was written got there is ZFS.

I thought it (optionally) handled failure modes using a combination of 
hashes, redundancy and parity along the same lines as btrfs, actually. 
Maybe I need to read up on how ZFS works...

	--- Mike

-- 
A man who reasons deliberately, manages it better after studying Logic
than he could before, if he is sincere about it and has common sense.
                                    --- Carveth Read, “Logic”