Date: Wed, 15 Apr 2015 07:26:50 -0500 From: Bigby James <bigby.james@dimthoughts.com> To: freebsd-questions@freebsd.org Subject: Re: ZFS Volumes, UFS, and TRIM Message-ID: <20150415122650.GA40508@WorkBox.Home> In-Reply-To: <74f939cf.1642c2ae@fabiankeil.de> References: <20150414182805.GA77026@WorkBox.Home> <74f939cf.1642c2ae@fabiankeil.de>
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On 04/15, Fabian Keil wrote: > Bigby James <bigby.james@dimthoughts.com> wrote: > > > Hey folks. I'm having some trouble finding info on a specific ZFS use case: I'm > > wondering if a ZFS volume on an SSD, formatted to UFS, is covered by native ZFS > > TRIM support, or if it needs to be enabled on the "embedded" UFS filesystem > > written to the zvol itself. I see by the man page that by default the OS sees > > the volume as an ordinary GEOM device, which leads me to infer that TRIM needs > > to be set using newfs(8) or tunefs(8), but I'm uncertain. > > You came to the right conclusion. > > Fabian Excellent, thanks for the response. Take care. -Bigby -- "A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools." - Douglas Adams
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