Skip site navigation (1)Skip section navigation (2)
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>

Next in thread | Previous in thread | Raw E-Mail | Index | Archive | Help
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>



Want to link to this message? Use this URL: <http://docs.FreeBSD.org/cgi/mid.cgi?20170429061514.d08283c9d6bb6cca669b5e01>