Re: Strange RAID-5 rebuild problem

[Michael Tokarev <mjt@tls.msk.ru>]

Michael Guntsche wrote:
> 
[]
> Answering myself here after reading through the manapges, this seems to 
> be a regression. Furthermore this may yield to some nasty data 
> corruption, well at least I think it will.
> 
> * --stop the array while resyncing.
> * set start_ro to 1
> * Start the array, automatic reconstruction does not start even after 
> the data is been written to the ARRAY

You can't write any data to a read-only array.

/mjt

> * stop the array again
> * set start_ro to 0
> * Start the array again
> The array picks up the resync process where it stopped the first time 
> even if there has already been data written to it, while it was started 
> with start_ro = 1.
> Won't this yield corrupted data, since data BEFORE that offset might 
> actually have changed in the mean time?
> 
> Kind regards,
> Michael