Date: Thu, 9 Apr 2015 15:27:26 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: mfv <mfv@bway.net> Cc: freebsd-questions@freebsd.org Subject: Re: Setting Trim _AFTER_ a New Install Message-ID: <alpine.BSF.2.20.1504091521170.1276@wonkity.com> In-Reply-To: <20150409152321.65de5fd0@gecko4> References: <20150409152321.65de5fd0@gecko4>
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On Thu, 9 Apr 2015, mfv wrote: > Hello, > > I've recently installed FreeBSD r10.1 using bsdinstall and then loaded > a large number of programs and data. After spending considerable time > on the installation I discovered that my SSD has TRIM which appears > to be quite useful. After some investigation I understand that it is a > simple flag that can be set after booting into single user mode. > > I hope my questions are simple: > > If TRIM is enabled will it mess up the disk so that everything has to be > reinstalled? No, it will not harm the data. That said, before running tunefs to enable it, make a backup. Always make a backup. > If not, is there anything else I should be aware of? If you used ZFS-on-root, tunefs(8) and TRIM do not apply. ZFS uses TRIM natively now, but I'm not sure if that was in 10.1 or only now in 10-STABLE.
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