Re: Need help on cache tier monitoring

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Hi,

Anyone can help on this?

Regs,
Icy



On Tue, 12 May 2020 at 10:44, icy chan <icy.kf.chan@xxxxxxxxx> wrote:

> Hi,
>
> I had configured a cache tier with below parameters:
> cache_target_dirty_ratio: 0.1
> cache_target_dirty_high_ratio: 0.7
> cache_target_full_ratio: 0.9
>
> The cache tier did improved the performance much. And I am targeted to
> keep the cache tier with only 10% of dirty data. Remaining data ( 80% ) are
> clean and ready for evict. I don't want the cache tier enter high flushing
> state which impacting the performance. Are there any methods to keep track
> the dirty ratio of target cache tier? Which I can plan for adding more OSDs
> if the dirty ratio keep floating around 50~70%
>
> Regs,
> Icy
>
>
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