Date: Tue, 14 Apr 2015 13:28:05 -0500 From: Bigby James <bigby.james@dimthoughts.com> To: freebsd-questions@freebsd.org Subject: ZFS Volumes, UFS, and TRIM Message-ID: <20150414182805.GA77026@WorkBox.Home>
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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. Thanks in advance for any help. - 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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