Enable UNMAP in ZFS

[Tom Evans]

On Fri, Jan 18, 2013 at 1:07 PM, Dani <dppascual at gmail.com> wrote:
> Hi all,
>
> I have installed FreeBSD 9.1 and have created a ZFS pool with SAS disks.
> How can I enable UNMAP on SSDs devices used as cache and log devices?
>
> Thanks you. Regards.

UNMAP, I don't know. FreeBSD ZFS has support for TRIM in 10-CURRENT.

Oracle support UNMAP in Solaris 11.1, but judging from this, it's not
that useful:

http://docs.oracle.com/cd/E26502_01/html/E28978/gmibl.html

Cheers

Tom