From owner-freebsd-questions@freebsd.org Thu May 18 12:05:08 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 E573FD739C3 for ; Thu, 18 May 2017 12:05:08 +0000 (UTC) (envelope-from kraduk@gmail.com) Received: from mail-qt0-x232.google.com (mail-qt0-x232.google.com [IPv6:2607:f8b0:400d:c0d::232]) (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 A24F412B0 for ; Thu, 18 May 2017 12:05:08 +0000 (UTC) (envelope-from kraduk@gmail.com) Received: by mail-qt0-x232.google.com with SMTP id f55so31842749qta.3 for ; Thu, 18 May 2017 05:05:08 -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=elkPEPLcZFySQhXLxx+nuCWqmtdmowJA4bTQQ0I1Uk0=; b=Yv2DNI+TSbpdviKd1xjt+cOQII/8lyRRGL2ci9wX7qXJTcgby4kOWd6nemOa3Bulua hUcpPAUbsLJM7v1H2mJcUSOH2wmZe1WwOn2QbV2PerwA0ALl/fX1QvUN/kmQiI2G9k3h Ktzt3HZouxo9O7kDkDl85CC+EZQaFOgZD/EbZtSNFTFKSd6EX7d96CpnDmAiTTW277c0 SdmcOtuXpYEtejbh/NmkBkly2p3P/r01iAwLXvzuTK2GZASeFCjXv123pURxmEfcF1cN Y+J5coBwYcHr5ZvzSuLFREejGPnIUIRrMliZE/ms1N/gMke9B6uByrvw1HTT6LqFCoQe yicw== 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=elkPEPLcZFySQhXLxx+nuCWqmtdmowJA4bTQQ0I1Uk0=; b=HHHxwaMJDGz+hp7zGF5rDJkS4jSwvy1Cx4qMTHTVKk3CdXJt2WKf3cFK8KaEDNxb1R d4X1juFjehEyKLi8Fklba29roVWMPxmQqXnYmnZ1czZqP9UAM1txVJLWPGEMVBNCpAiv DsTjdenvsfs/xjPpTSGS6FuSn3sdnoBUb6qTCDUAYkKd7nvMesuG/CPL655NuewKjsGA uVh895+G3xZ8Zpg1p3qjg6jCLz5Z6VnRsQKETcInn7bRG9IjbYxOd44y4bUotB1gdmBS NUu1t0+szxQqVgyGNuuTIaoiULaLHXYBj81zSN2wiFhh4n/kUZlClxxYtffnUZyeQ774 rBvg== X-Gm-Message-State: AODbwcAiDo3PlCCpk0XV84uMF1BisVlkIrHCeaxpmu9arr+Yy1tBOoqC QB+Ibs4zzbo9cTIZDiNxiCtRoaZLrA== X-Received: by 10.237.53.23 with SMTP id a23mr3336458qte.171.1495109107646; Thu, 18 May 2017 05:05:07 -0700 (PDT) MIME-Version: 1.0 Received: by 10.12.135.167 with HTTP; Thu, 18 May 2017 05:05:07 -0700 (PDT) In-Reply-To: References: From: krad Date: Thu, 18 May 2017 13:05:07 +0100 Message-ID: Subject: Re: ZFS root on single SSD? To: Aaron Cc: FreeBSD Questions Content-Type: text/plain; charset="UTF-8" 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: Thu, 18 May 2017 12:05:09 -0000 The big question is what availability do you need on this server? As its a home system I guess not as much as say an enterprise one. Therefore I would imagine all the benefits of manageability that come with zfs will out weigh the downside, even if running on a single volume. Boot environments are a really big thing to safe guard yourself during upgrade time. Although in theory you could do something with ufs its never going to be as good as with zfs. Also remember mirroring isnt backup, mirroring is about availability. Therefore live with a single drive, but backup the contents regularly. On 16 May 2017 at 06:45, Aaron wrote: > So, I've been running ZFS root mirror across 2 spinning disks, and I'm > upgrading my home server/nas and planning on running root on a spare SSD. > However, I'm unsure if it'd be better to run UFS as a single drive root > instead of ZFS, although I do love all of the ZFS features (snapshots, COW, > scrubbing, etc) and would still like to keep that for my root drive, even > if I'm not mirroring at all. I do notice that FreeBSD has TRIM support for > ZFS (see http://open-zfs.org/wiki/Features#TRIM_Support). > > So is there a good reason NOT to run ZFS root on a single drive SSD? > > --Aaron > _______________________________________________ > 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" >