> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Dan Swartzendruber
> My first thought was everything is
> hitting in ARC, but that is clearly not the case, since it WAS gradually 
> filling up
> the cache device.  

When things become colder in the ARC, they expire to the L2ARC (or simply 
expire, bypassing the L2ARC).  So it's normal to start filling the L2ARC, even 
if you never hit anything in the L2ARC.

> ARC Efficency:
>           Cache Access Total:             12324974
>           Cache Hit Ratio:      87%       10826363       [Defined State

That is a REALLY high hit ratio for ARC.

It sounds to me, you probably have enough ram in there, that nearly everything 
is being served from ARC.

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