svn commit: r341232 - in head/usr.bin: . trim

[John Nielsen]

> On Nov 29, 2018, at 7:21 AM, Eugene Grosbein <eugen at FreeBSD.org> wrote:
> 
> Author: eugen
> Date: Thu Nov 29 14:21:26 2018
> New Revision: 341232
> URL: https://svnweb.freebsd.org/changeset/base/341232
> 
> Log:
>  Add new small tool trim(1) to delete contents for blocks on flash
>  based storage devices that use wear-leveling algorithms.
> 
>   [snip]

> +.Sh DESCRIPTION
> +The
> +.Nm
> +utility erases specified region of the device.
> +It is only relevant for flash based storage devices that use wear-leveling
> +algorithms.

I’m curious, would this also be useful for virtual disks or SAN/NAS devices backed by thinly-provisioned storage?