Date: Thu, 28 Aug 2014 17:24:04 -0500 From: Adam Vande More <amvandemore@gmail.com> To: Mike Clarke <jmc-freebsd2@milibyte.co.uk> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: TRIM considerations when repartitioning a SSD Message-ID: <CA%2BtpaK0UpDCvBuMpnOkDXNfcnkuBfB-6tv2cMuyRjah5Z3xPRQ@mail.gmail.com> In-Reply-To: <3415139.ffIAe6AYm2@curlew.lan> References: <3415139.ffIAe6AYm2@curlew.lan>
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On Thu, Aug 28, 2014 at 4:54 PM, Mike Clarke <jmc-freebsd2@milibyte.co.uk> wrote: > > FreeBSD 9.3-RELEASE > > I may soon need to repartition a SSD which has a zpool on it and was > wondering what is the best method of ensuring that all blocks get > marked as no longer in use. > > Is gpart sufficiently TRIM aware to be able to just use gpart delete? Extremely doubtful that it is. You generally must reset the drive eg camcontrol security da4 -s buhbyesweetdata -e buhbyesweetdata -- Adam
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