[OpenIndiana-discuss] unrecoverable corruptions on raidz2

[Jim Klimov]

On 2012-11-18 12:13, Jim Klimov wrote:
> On another side note: Perhaps it might be a useful tunable
> precaution - to have ZFS access the individual disks in a
> TLVDEV with some delay between each other, adding to latency
> and to safety against such problem-cause, but the illumos-gate
> might reasonably turn the idea down, because a well-built machine
> of the target market shouldn't suffer this problem - and the
> added code complexity and artificially slower IOs would likely
> be seen as a drawback. Also, command-queuing in the firmware
> might render these precautions worthless. Then again, developer
> enthusiasts are free to try implementing this failsafe net IO
> mode for the worse boxes out there, and I won't mind having it
> enabled on my box at least for added peace of mind. The box is
> slow enough already with random IOs (5-10MB/s was not uncommon),
> so I won't be bothered by even more lags, as long as it keeps
> the data safely. I think, I'll post an RFE lest the idea be lost.

Just in case someone picks this idea up, it is more cleanly
formulated as a new RFE: https://www.illumos.org/issues/3372

//Jim