Date: Fri, 18 Jan 2013 14:23:03 +0000 From: Tom Evans <tevans.uk@googlemail.com> To: Dani <dppascual@gmail.com> Cc: freebsd-fs@freebsd.org Subject: Re: Enable UNMAP in ZFS Message-ID: <CAFHbX1%2B8RnVZ0SF-6jMKc5gZMoyK6LB0VBzKeT5TuQEA0LREVA@mail.gmail.com> In-Reply-To: <CAAOK-NAnzq=iUnygw=LmxT3rUHzSM7h%2BWO2WuOUkZVB7K1jDvw@mail.gmail.com> References: <CAAOK-NAnzq=iUnygw=LmxT3rUHzSM7h%2BWO2WuOUkZVB7K1jDvw@mail.gmail.com>
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On Fri, Jan 18, 2013 at 1:07 PM, Dani <dppascual@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
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