[zfs-discuss] default value of zfs_arc_max

Gordan Bobic gordan.bobic at gmail.com
Mon Nov 26 10:31:30 EST 2018


I believe that is correct, it default is 50% of usable RAM.

On Mon, Nov 26, 2018 at 3:28 PM George Melikov via zfs-discuss <
zfs-discuss at list.zfsonlinux.org> wrote:

> Yes, by default it will use half of max RAM size.
>
>
> 26.11.2018, 18:25, "Stefan K via zfs-discuss" <
> zfs-discuss at list.zfsonlinux.org>:
>
> Hello,
>
>
>
> can somebody tell me what the default of zfs_arc_max is?
>
> cat /sys/module/zfs/parameters/zfs_arc_max
> 0
>
>
>
> I've 256GB RAM but it only use ~122GB (about the half?). I thought it use
> all my RAM?
>
> And the most important question can I change it on the fly?
>
>
>
> best regards
>
> Stefan
> ,
>
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>
>
> ____________________________________
> Sincerely,
> George Melikov
>
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