Hi,

Yan, Zheng wrote:
 
> fsc means fs-cache. it's a kernel facility by which a network
> filesystem can cache data locally, trading disk space to gain
> performance improvements for access to slow networks and media. cephfs
> does not use fs-cache by default.

So enable this option can improve performance, correct?
Is there downside in return?

-- 
François Lafont
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