Date: Thu, 29 Nov 2018 09:45:25 -0700 From: John Nielsen <lists@jnielsen.net> To: Eugene Grosbein <eugen@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r341232 - in head/usr.bin: . trim Message-ID: <9812F670-DD3D-4A56-A826-28B4A055F488@jnielsen.net> In-Reply-To: <201811291421.wATELQbx059318@repo.freebsd.org> References: <201811291421.wATELQbx059318@repo.freebsd.org>
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> On Nov 29, 2018, at 7:21 AM, Eugene Grosbein <eugen@FreeBSD.org> wrote: >=20 > Author: eugen > Date: Thu Nov 29 14:21:26 2018 > New Revision: 341232 > URL: https://svnweb.freebsd.org/changeset/base/341232 >=20 > Log: > Add new small tool trim(1) to delete contents for blocks on flash > based storage devices that use wear-leveling algorithms. >=20 > [snip] > +.Sh DESCRIPTION > +The > +.Nm > +utility erases specified region of the device. > +It is only relevant for flash based storage devices that use wear-levelin= g > +algorithms. I=E2=80=99m curious, would this also be useful for virtual disks or SAN/NAS d= evices backed by thinly-provisioned storage?
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