From owner-freebsd-questions@freebsd.org Tue May 16 05:45:51 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 7869ED6CADE for ; Tue, 16 May 2017 05:45:51 +0000 (UTC) (envelope-from drizzt321@gmail.com) Received: from mail-vk0-x232.google.com (mail-vk0-x232.google.com [IPv6:2607:f8b0:400c:c05::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 3E33628C for ; Tue, 16 May 2017 05:45:51 +0000 (UTC) (envelope-from drizzt321@gmail.com) Received: by mail-vk0-x232.google.com with SMTP id p85so39012741vkd.3 for ; Mon, 15 May 2017 22:45:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=lst0vaX+xBSec8uHV+/5emDn/g1abqnOgK6DBSTG4sU=; b=GGVaEsAjp9Yn7J80289drg56HwCT2tS5vpm656sa07+GQOUWU1iWDd09J07EewIz8M qU39giYRFeIsVO6noY4U0lXRS1Ghwqim5oyOvm7IiclHuRue01hF/DauUJWNetYjRVSP zqVWx4+ac5JKXaawfilE/1ZqywRVnvYrGidqlnM/ZEnm0Z5pl8MsRihrTE3nqcujUaFy 9zgYHsfP4A9pDtqmm92A4ir2/3IkK3lcbaw5cZDdUinVSw8tsc48ndLOezfpeuOME4a6 SEfBpAyWLRLCceqaDUwdxgdqXyyg2QYCdsvRLWcaWYSH16EOnbqo72zq4NsJ+KS7WEgM wSiQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=lst0vaX+xBSec8uHV+/5emDn/g1abqnOgK6DBSTG4sU=; b=MAv8rpp07Q9sUL8MtSocdL41CZnixaHGHwjVVwKtM69ch+0EWjUfHCZ9z7ItrZPirb pfnoCv+rTzJ1bwT10bj4K88k5OOouETMEIqy6k6V3XPWzH2Smis0abdIb/dWeJ+h+yq5 y4RVecDgoomGDo0Znbbr/0vuZ53EFumEHYWf7Pp9UXQRNYD08UY5C72qNTwUIxFiclDD 1NhN/d7RIbLPPacIFMcpO0VpuHK1yyJBvTH/52kiayTn5A6L/7CgMrG3DQdWFaUpYuwX PsThkY5Tne2QkwSEbPGK8tjO9VDuiqVfCHzYNRjWQyUcLjtK8eURJUH1wED+nDRxrNP2 8pkQ== X-Gm-Message-State: AODbwcAujZkH89qFXdxlTEBprBubcPOpb6gooouwFBl3J7uhNMMYV1Ql 1Sw+jaEmTdA6oGRmgR9hcwv1mjFASSIi3e4= X-Received: by 10.31.244.66 with SMTP id s63mr4017093vkh.21.1494913549611; Mon, 15 May 2017 22:45:49 -0700 (PDT) MIME-Version: 1.0 Received: by 10.103.148.75 with HTTP; Mon, 15 May 2017 22:45:19 -0700 (PDT) From: Aaron Date: Mon, 15 May 2017 22:45:19 -0700 Message-ID: Subject: ZFS root on single SSD? To: freebsd-questions@freebsd.org 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: Tue, 16 May 2017 05:45:51 -0000 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