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Date: Sun, 20 Nov 2016 14:52:20 +0000
From: Gary Palmer <gpalmer@freebsd.org>
To: Kent Kuriyama <kent.kuriyama@gmail.com>
Cc: freebsd-fs@freebsd.org
Subject: Re: ZFS question: "L2ARC is disabled"
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On Fri, Nov 18, 2016 at 04:31:49AM -1000, Kent Kuriyama wrote:
> I have set up a ZFS pool (zpool0) with both zil and L2ARC.  The output of
> zpool status is:
> 
> ------------------------------------
> zpool status
>   pool: zpool0
>  state: ONLINE
>   scan: none requested
> config:
> 
>         NAME        STATE     READ WRITE CKSUM
>         zpool0      ONLINE       0     0     0
>           da0p2     ONLINE       0     0     0
>         logs
>           ada0p8    ONLINE       0     0     0
>         cache
>           ada0p9    ONLINE       0     0     0
> 
> errors: No known data errors
> ----------------------------------
> 
> When I run "zfs-stats -v" I get the message "L2ARC is disabled".  ARC is
> healthy.  Can someone please tell me what I am doing wrong to prevent L2ARC
> from being enabled?  I am running a qbittorrent on a FreeBSD 11.0p3 system
> and expected to benefit from L2ARC because of the intense read activity.
> Both the ZIL and L2ARC are on an SSD partition.

What is the output from

zfs get secondarycache zpool0

Gary