From owner-freebsd-questions@freebsd.org Fri Apr 28 15:13:22 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D89F8D5471A for ; Fri, 28 Apr 2017 15:13:22 +0000 (UTC) (envelope-from kraduk@gmail.com) Received: from mail-qk0-x236.google.com (mail-qk0-x236.google.com [IPv6:2607:f8b0:400d:c09::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 931CE61B for ; Fri, 28 Apr 2017 15:13:22 +0000 (UTC) (envelope-from kraduk@gmail.com) Received: by mail-qk0-x236.google.com with SMTP id f76so55323136qke.2 for ; Fri, 28 Apr 2017 08:13:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=5SRKxoTCuG3KaIReBTrn4iAKcg00rsJG532TLluLP8M=; b=clDCBBnnh/Dfm1ia7qH3JezgrIALoLi3vzbo3MxanWBqxk1ofN4IF3lB+0+rbO2Bup zEAytVk3WYk2TOPlZSL8gm3rb91DJoS1zMS/NnUuxjYnJcMeR5iMqwUE+DgGpWppMers mYW797KYzWW7mF1y+uEG/c+I20wc3epqEwuBafHU/5EDdrD5bM8QMTptfT76aQxQjhVQ O0nOaQ+O68iej5bmIddCP37m+D4tvOLLsr800qk2/mYSIlqp7xeFBy9hDz9NiSZDsEse 7HVu0OprnqcN7HIti02Ix9qbJHmUWoi4YVLhOL04pTXMbWPPV/2EcF2l9Esq5jT+RL+V EM+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=5SRKxoTCuG3KaIReBTrn4iAKcg00rsJG532TLluLP8M=; b=JAXp7YzEk9DYJW+oh4hgbOQsipB13Y1qiOkCEzil6wwNEBQ76o2MMhYP2MKEKTdIij xc8kUSKcC+taY0kINRgOTVOfXNW25dyve7AxrjH1I9OmEjKRbZ8bO3lOaSX5WcB0I7mh aMhxU0xNlhM7WFI1U27XxTIGRfeW9rMuxzM6KoFNS41DQj52z07fVihFUXBEBM36rKtj 8KEprlKiE45VyYt9XEmcmWndV+bUZLncqIjmEiw2+updUEYA863rMSluPddxXOEzXQST ACXrdxHneBuFjfERG4S+4/gdYV/1uYiD0yLwPTO/+gMg7GjFOwAdGGa4410sb22YsYF9 OSag== X-Gm-Message-State: AN3rC/6AOHxJ0ObmMqnP53/vty+vwU7RABnTclp8x2SK+fJA/pY8zKfJ qbLd15TwweuQ7Oj93c3ed0tE5FDY6rKI X-Received: by 10.55.164.20 with SMTP id n20mr11399974qke.200.1493392401763; Fri, 28 Apr 2017 08:13:21 -0700 (PDT) MIME-Version: 1.0 Received: by 10.12.183.158 with HTTP; Fri, 28 Apr 2017 08:13:21 -0700 (PDT) In-Reply-To: <20170428155105.563a2ee5192bb8a08f76ca9d@sohara.org> References: <20170428155105.563a2ee5192bb8a08f76ca9d@sohara.org> From: krad Date: Fri, 28 Apr 2017 16:13:21 +0100 Message-ID: Subject: Re: A seperate ZFS question To: "Steve O'Hara-Smith" Cc: FreeBSD Questions Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Apr 2017 15:13:22 -0000 maybe you can https://www.delphix.com/blog/delphix-engineering/openzfs-device-removal it wont be easy though as its another OS to boot into, which may for a pool upgrade. Probably easier to backup and recreate On 28 April 2017 at 15:51, Steve O'Hara-Smith wrote: > On Fri, 28 Apr 2017 15:52:59 +0200 (CEST) > Trond Endrest=C3=B8l wrote: > > > On Fri, 28 Apr 2017 14:14+0100, Paul Macdonald wrote: > > > > > > > > I fat fingered adding a cache drive and was unable to remove the SSD > > > cache drive (ada2) > > First, you have gpt/zfs0 and ada1p3 in a mirrored configuration. Next, > > you have ada2 striped (RAID 0) to the first pair of mirrors. This is a > > very weird "RAID 1 + 0" combo. Guess what will happen when you lose > > ada2! > > > > Maybe you should describe what you wanted to happen in the first > > place. > > He did, ada2 is supposed to be a cache drive, now it's a stripe. > > > I suggest you make good backups of this pool, destroy it, recreate it > > properly, and restore the missing data. > > Agreed, you can't undo adding a stripe. > > -- > Steve O'Hara-Smith > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions- > unsubscribe@freebsd.org" >