From owner-freebsd-current@freebsd.org Tue Jan 12 18:38:37 2021 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id ADD4C4E22D0 for ; Tue, 12 Jan 2021 18:38:37 +0000 (UTC) (envelope-from asomers@gmail.com) Received: from mail-ot1-f44.google.com (mail-ot1-f44.google.com [209.85.210.44]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DFfV45vSkz4Tvp for ; Tue, 12 Jan 2021 18:38:36 +0000 (UTC) (envelope-from asomers@gmail.com) Received: by mail-ot1-f44.google.com with SMTP id j20so3228198otq.5 for ; Tue, 12 Jan 2021 10:38:36 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=94nNz6odrJjSrCabSXbjOQh6Q+6uqomsFqgWUd7l8vM=; b=JNzu2ort4+7ZpmqJ/TWVia9DAQGedjawIjJRQqUwqr2SszA8gdgYE2+cTM0bVr4eYF lFxQnG8AmYNQY9/oXiRh2HxLmZLUwenhlupLZOoKXoWCDC6/bLaTmPSwPWdoG5klbn3N 6iw4ai+YogAOYbYwC4pgGrCKiHZTB7FS/olgys586dDTtY1eCo0tzMNiYyH3dJvsbMRY d/4V7nVPOR4S+ReCpTYPeZ0zM+DjzqS1OUZZklEDVOdUL7d2l1cndyZbUtE8jhUlqXsM yA5Dgw619w+EYPZ51XquECXzOuwvMyxOpy/LM3TBqO+bY6IchhtAuS2IP6Nbu3urQpib 3QGA== X-Gm-Message-State: AOAM533LZ8AScsEX4jd0OJAMwRd6qPMgilfSjQFcpFHRJ2YKI3/Re4rc lQnTDXLJrDZQ4XYTmyYqyRv8w6xDK8H4oTEOut6260DGCG8= X-Google-Smtp-Source: ABdhPJxoTTQUF6pNxTxJT8FfaM3cCl5KgxLod+ZaX+PnyCMRycr5pJhOxFj3JbXZNOm34qDpeApfLEQrV+BkZj3htfU= X-Received: by 2002:a05:6830:2413:: with SMTP id j19mr506860ots.251.1610476715727; Tue, 12 Jan 2021 10:38:35 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Alan Somers Date: Tue, 12 Jan 2021 11:38:24 -0700 Message-ID: Subject: Re: Preparing ZFS drives To: joe mcguckin Cc: FreeBSD CURRENT X-Rspamd-Queue-Id: 4DFfV45vSkz4Tvp X-Spamd-Bar: -- X-Spamd-Result: default: False [-3.00 / 15.00]; RWL_MAILSPIKE_GOOD(0.00)[209.85.210.44:from]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; TO_DN_ALL(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-0.999]; RCPT_COUNT_TWO(0.00)[2]; FORGED_SENDER(0.30)[asomers@freebsd.org,asomers@gmail.com]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RBL_DBL_DONT_QUERY_IPS(0.00)[209.85.210.44:from]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; FROM_NEQ_ENVFROM(0.00)[asomers@freebsd.org,asomers@gmail.com]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FREEFALL_USER(0.00)[asomers]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DMARC_NA(0.00)[freebsd.org]; SPAMHAUS_ZRD(0.00)[209.85.210.44:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[209.85.210.44:from]; R_DKIM_NA(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-current] Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.34 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Jan 2021 18:38:37 -0000 On Tue, Jan 12, 2021 at 11:10 AM joe mcguckin wrote: > Folks, > > I want to buy some 16TB drives and raid them up > > How should I label and prepare the drives for ZFS? Someone ought to writ= e > a =E2=80=98cookbook=E2=80=99 on that! > > Do I need to start the volume on a particular sector boundary? > > Are the 4096 byte sector drives usable? > > Thanks, > > Joe > > Joe McGuckin > ViaNet Communications > > joe@via.net > 650-207-0372 cell > 650-213-1302 office > 650-969-2124 fax > If you aren't going to boot from them, and you aren't using anything fancy like multipath JBODs, then you don't need to do anything at all. Just use the raw disks. And you don't need to worry about the sector size, unless you're planning to replace 512B disks with 4KB disks at some future date. -Alan