[Bug 228359] rebuild gmirror + ufs + ssd +trim

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228359

Warner Losh <imp at FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |imp at FreeBSD.org

--- Comment #2 from Warner Losh <imp at FreeBSD.org> ---
"To answer your question directly, no, there is currently no way to ask UFS to
TRIM unused filesystem blocks. Of course, gmirror has no way to know whether a
given block is used or not, so the problem cannot be solved there. Creating a
large file and deleting it is probably the only reasonable workaround for now."

Doesn't fsck_ufs -E do this?

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