Re: Deep scrubbing causes severe I/O stalling

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> Op 28 oktober 2016 om 15:37 schreef Kees Meijs <kees@xxxxxxxx>:
> 
> 
> Hi,
> 
> Interesting... We're now running using deadline. In other posts I read
> about noop for SSDs instead of CFQ.
> 
> Since we're using spinners with SSD journals; does it make since to mix
> the scheduler? E.g. CFG for spinners _and_ noop for SSD?
> 

Yes, CFQ for the spinners and noop for the SSD is good. The scrubbing doesn't touch the journal anyway.

Wido

> K.
> 
> On 28-10-16 14:43, Wido den Hollander wrote:
> > Make sure you use the CFQ disk scheduler for your disks though.
> 
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