From owner-freebsd-stable@freebsd.org Sun Oct 6 21:25:24 2019 Return-Path: Delivered-To: freebsd-stable@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 DD39D1352EB for ; Sun, 6 Oct 2019 21:25:24 +0000 (UTC) (envelope-from paul@gromit.dlib.vt.edu) Received: from gromit.dlib.vt.edu (gromit.dlib.vt.edu [128.173.49.70]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "gromit.dlib.vt.edu", Issuer "Chumby Certificate Authority" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 46mc8c2P43z3MtB; Sun, 6 Oct 2019 21:25:19 +0000 (UTC) (envelope-from paul@gromit.dlib.vt.edu) Received: from [10.0.23.4] (gateway2.lib.vt.edu [128.173.124.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by gromit.dlib.vt.edu (Postfix) with ESMTPSA id DD9D53EA; Sun, 6 Oct 2019 17:25:12 -0400 (EDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: Re: ZFS with 32-bit, non-x86 kernel From: Paul Mather In-Reply-To: Date: Sun, 6 Oct 2019 23:25:10 +0200 Cc: freebsd-stable@FreeBSD.org Content-Transfer-Encoding: quoted-printable Message-Id: References: To: Andriy Gapon X-Mailer: Apple Mail (2.3445.9.1) X-Rspamd-Queue-Id: 46mc8c2P43z3MtB X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=vt.edu (policy=none); spf=none (mx1.freebsd.org: domain of paul@gromit.dlib.vt.edu has no SPF policy when checking 128.173.49.70) smtp.mailfrom=paul@gromit.dlib.vt.edu X-Spamd-Result: default: False [-2.12 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; DMARC_POLICY_SOFTFAIL(0.10)[vt.edu : No valid SPF, No valid DKIM,none]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MV_CASE(0.50)[]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE(-0.63)[ip: (-1.57), ipnet: 128.173.0.0/16(-0.79), asn: 1312(-0.72), country: US(-0.05)]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; RCPT_COUNT_TWO(0.00)[2]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:1312, ipnet:128.173.0.0/16, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Oct 2019 21:25:24 -0000 On Oct 4, 2019, at 4:05 PM, Andriy Gapon wrote: > Does anyone use ZFS with a 32-bit kernel, that is also not i386 ? > If you do, could you please let me know? Along with uname -rmp = output. > Thank you! I am using a Root-on-ZFS setup on a FreeBSD/arm 12-STABLE Raspberry Pi 2 = system (as well as on arm64 on a Raspberry Pi 3): # uname -rmp 12.1-STABLE arm armv7 It has two ZFS pools, one of which I use as a destination for various = local backups: # zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP = HEALTH ALTROOT data 3.62T 778G 2.86T - - 0% 20% 1.00x = ONLINE - sys 7.50G 460M 7.05G - - 5% 5% 1.00x = ONLINE - I have vfs.zfs.arc_max=3D"384M" set in /boot/loader.conf. The Pi 2 has = 1 GB RAM. The system has worked very well so far---it seems more stable than the = UFS-based system it started out life as. I converted it using the = writeup that Bernd Walter posted to freebsd-arm back in late February, = 2019: = https://lists.freebsd.org/pipermail/freebsd-arm/2019-February/019455.html Scrubbing the "data" pool takes quite a while, though. The last one = (completed on 2019-09-23) took 12 days 18:26:31. :-) Cheers, Paul.=