Date: Fri, 22 Jul 2016 15:48:50 +0300 From: Nikos Kastanas <zerotronic@gmail.com> To: freebsd-fs@freebsd.org Subject: ZFS, SSD and encryption Message-ID: <CAJPDrRtLBNKr4BynSGMRfFGdAR0ZbDuwfcqkLupvk5HtgqrbQg@mail.gmail.com>
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I have a Lenovo X220 laptop running FreeBSD 10.3-RELEASE with ZFS and encryption on a plain HDD. I am considering buying a Samsung Pro 850 SSD to boost performance but I am not sure if TRIM and ZFS+Encryption work well together. After some research online, I found *this page* <https://www.freebsd.org/doc/faq/all-about-zfs.html>which states the following: *Note: * ZFS TRIM may not work with all configurations, such as a ZFS filesystem on a GELI-backed device. >From what I can understand from the above note, I should not use the encryption option when installing FreeBSD with ZFS on an SSD. TRIM will not work correctly and therefore the SSD performace will be impacted. Do I understand it correctly? Or is there something that I miss? After asking in the community forums <https://forums.freebsd.org/threads/57011/>; a member suggested that i should instead ask here. Sorry if this is a stupid question, but I really want to be sure, since SSDs are expensive and I don't want to make a mistake that will affect its performance. Thank you in advance.
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