Date: Fri, 10 Apr 2015 14:43:07 -0700 From: javocado <javocado@gmail.com> To: FreeBSD Filesystems <freebsd-fs@freebsd.org> Subject: Migrating ZFS from 8.3 to 10.1 Message-ID: <CAP1HOmSwTw_pd_UUu9BcwUe2eeG5Uxv7O5iK62S_Mcb-WKzmPg@mail.gmail.com>
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Hello, I am planning to migrate (upgrade) my system from FreeBSD 8.3 RELEASE to 10.1 RELEASE (both amd64). My zfs pool exists on it's own physical device(s) so my upgrade will consist of: 1. install FreeBSD 10.1 on boot device (in a temp system) 2. remove 8.3 boot device (from production system) 3. install new 10.1 boot device and boot up production system 4. re-mount zfs FS My question is, what do I need to know about how this change will affect or impact the zpool and datasets? Is there any chance zfs data could be lost or destroyed? Might there be a performance loss due to version differences? Is upgrading the zpool (once booted to 10.1) strongly advised? Any downsides or dangers there? Some other info worth considering (production system): ZFS filesystem version 5 ZFS storage pool version 28 Thanks!
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