From owner-freebsd-fs@freebsd.org Thu Dec 20 17:33:05 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5C3FA134DFC9 for ; Thu, 20 Dec 2018 17:33:05 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-qk1-x729.google.com (mail-qk1-x729.google.com [IPv6:2607:f8b0:4864:20::729]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5E16C8A53B for ; Thu, 20 Dec 2018 17:33:04 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: by mail-qk1-x729.google.com with SMTP id w204so1478023qka.2 for ; Thu, 20 Dec 2018 09:33:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=fdLQinfKSdDl0dO1eawoSHXN+APGk5nRCkgu6oZ/3Lw=; b=GJYPs4+E3uZoMJ3KToT4vAfSAukXNV/7UUnpPceZ65XYWqYYn645cTFe6ZfnXoEROS ikL86MJlgDh/UmwDmJqItZEVG7C+uPDjQTKQFORGZgfpXCAoi1J0+49/fwDZfcGLDNE1 Mw9Ji/rTILeLLHL6/NLovcXKSOCquQ+JOxWl8CtPaBEtwuTZSJTKQY6H+gO0fS/pL47V 2bX0FvG5JlK5SSWRyHhN+LXZHcm/9BDxlrMQKSKNmK/JAMmLKPInX/DZvrlR6r1Wlspk PBxyfwjO+GmF66muH9DqFZhJjj7ZHdD0c4P1IDg0bc+/z3err+Y/eAT8LchASGyCARuO DYwQ== 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=fdLQinfKSdDl0dO1eawoSHXN+APGk5nRCkgu6oZ/3Lw=; b=DM3mVLdyPf80cAhxSidtvZCEDgRYMiXXGhQ+PXxKDnl9w9qSSQ+HhbKBGfwUD3O+0X TK1Ytbn2ilmvJ6Y8C0030HjL6UunvfomDv7HlVaxbRpTR2CJz0pMcffp5MS+fHv1DOA1 ZwXAKsrqs2Wtn0OueK8xgukNmkDPTdqkQGVsl8frA/nFlWyG3t4GZGO/EA1pZbA688kF Xa4MWlldkZe2dB1UJKSRPkZ2jCxPlDzb5idvu5sQSUDOK34mmKKnMqtrmIHyPD0k6N58 FJY9NjdEfZMoxzU/+wFr5bI9o6aPQa57Js4iGJZj/iDSujP7E0Nh2TkJchxZ6bksfkdJ vLgA== X-Gm-Message-State: AA+aEWaol9yLl+LzIAIHZ9VoIjZ+0VgNUE/LBkWoCgp5tD3iTIJMMaK7 Hw9RxgYNGUJnbRswO9do8ZyGMNhpNIOkVrTrGVO6/w== X-Google-Smtp-Source: AFSGD/W4U/MVTuvRUh6HwJWMwJ3gk455a6nC1OzIGJetLH1qPhDG4KNiILTouM3HqiWBsxQnKSZp9H4+WLOxuMnnSrk= X-Received: by 2002:a37:6e86:: with SMTP id j128mr26410675qkc.46.1545327183717; Thu, 20 Dec 2018 09:33:03 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Warner Losh Date: Thu, 20 Dec 2018 10:32:52 -0700 Message-ID: Subject: Re: The future of ZFS in FreeBSD To: Matthew Macy Cc: freebsd-fs , freebsd-current X-Rspamd-Queue-Id: 5E16C8A53B X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=bsdimp-com.20150623.gappssmtp.com header.s=20150623 header.b=GJYPs4+E X-Spamd-Result: default: False [-4.84 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[bsdimp-com.20150623.gappssmtp.com:s=20150623]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-fs@freebsd.org]; DMARC_NA(0.00)[bsdimp.com]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[bsdimp-com.20150623.gappssmtp.com:+]; MX_GOOD(-0.01)[cached: ALT1.aspmx.l.google.com]; RCVD_IN_DNSWL_NONE(0.00)[9.2.7.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; NEURAL_HAM_SHORT(-0.94)[-0.942,0]; R_SPF_NA(0.00)[]; FORGED_SENDER(0.30)[imp@bsdimp.com,wlosh@bsdimp.com]; MIME_TRACE(0.00)[0:+,1:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[imp@bsdimp.com,wlosh@bsdimp.com]; IP_SCORE(-1.89)[ip: (-6.15), ipnet: 2607:f8b0::/32(-1.78), asn: 15169(-1.41), country: US(-0.08)]; RCVD_COUNT_TWO(0.00)[2] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Dec 2018 17:33:05 -0000 Matt, This is a fairly comprehensive plan. Kudos for putting it together. The big question here is do you have a complete list of FreeBSD-specific changes that will be lost in the cut-over? We've heard about TRIM support and maybe NFSv4, but are there others that can be identified? Once you have that list, it wouldn't be hard to throw the initial email with some tweaks from the replies into a FCP so everybody knows the plan, and we have it ratified in case people come along later and 'forget'. Warner