ZFS and a spare SSD: ZIL or L2ARC?

[Felix Winterhalter]

Hello Av,

if you don't have a second spare SSD I can not recommend using it as
ZIL. If your single ZIL disk dies you do lose data. Using it as L2ARC
would be safe.

Regards,
Felix

On 13/02/2019 18:02, Andrea Venturoli wrote:
> Hello.
>
> I have a FreeBSD server with a 4TB ZRAID1 and 16GiB RAM; it's also
> hosting a Windows 7 with SQL Server through bhyve.
>
> Now I've just got hold of a spare SSD and, although the box
> performance is adequate, I'd like to see if it can boost it.
> Should I configure it as L2ARC? ZIL? Both?
>
> Which will benefit the bhyve VM more?
>
>  bye & Thanks
>     av.
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