Date: Sat, 29 Apr 2017 06:15:14 +0100 From: Steve O'Hara-Smith <steve@sohara.org> To: freebsd-questions@freebsd.org Subject: Re: A seperate ZFS question Message-ID: <20170429061514.d08283c9d6bb6cca669b5e01@sohara.org> In-Reply-To: <480833b2-d630-a703-ecd0-3281ed49a738@ifdnrg.com> References: <adb1b78d-2e03-d561-dac2-7c5da9a53a1c@ifdnrg.com> <alpine.BSF.2.20.1704281532300.10691@mail.fig.ol.no> <20170428155105.563a2ee5192bb8a08f76ca9d@sohara.org> <480833b2-d630-a703-ecd0-3281ed49a738@ifdnrg.com>
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On Fri, 28 Apr 2017 22:19:33 +0100 Paul Macdonald <paul@ifdnrg.com> wrote: > all this so far i knew, > > It's an entirely unwanted config, and i'll likely just migrate either > the data or the jails to another box, but i'd hoped to understand what > the config meant under ZFS: > > As i understand from comments, i have effectively created a mis-sized > RAID0 (stripe) between a SATA mirror set and a single SSD, Yes. > i'm now very glad i didn't just unplug the SSD drive and instead added a > 2nd SSD for the actual cache Good call. > So i guess i have until the SSD fails (or presumably until the SSD > reaches its capacity to fix this) Not necessarily - what version of FreeBSD are you on ? If it's 11 you may be able to remove the SSD with zpool remove (if it's 10 you can't). Failing that your options are: Live with it - but if/when the SSD fails you lose data Expand the pool by mirroring then replacing the SSD Backup, rebuild, restore -- Steve O'Hara-Smith <steve@sohara.org>
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