From owner-freebsd-fs@freebsd.org Sun Nov 11 00:15:04 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 78B2B11212BB for ; Sun, 11 Nov 2018 00:15:04 +0000 (UTC) (envelope-from joe@via.net) Received: from smtp3.via.net (smtp3.via.net [157.22.3.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 9415083753 for ; Sun, 11 Nov 2018 00:15:02 +0000 (UTC) (envelope-from joe@via.net) Received: from mail.via.net (mail.via.net [157.22.3.34]) by smtp3.via.net (8.15.2/8.14.1-VIANET) with ESMTPS id wAB07BAG009462 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sat, 10 Nov 2018 16:07:11 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.97.3 at smtp3.via.net Received: from [209.81.2.65] ([209.81.2.65]) (authenticated bits=0) by mail.via.net (8.15.2/8.14.1-VIANET) with ESMTPSA id wAB07A3m011847 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Sat, 10 Nov 2018 16:07:10 -0800 (PST) From: joe mcguckin Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 12.0 \(3445.100.39\)) Subject: ZFS flash systems Message-Id: Date: Sat, 10 Nov 2018 16:07:00 -0800 To: freebsd-fs@freebsd.org X-Mailer: Apple Mail (2.3445.100.39) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (smtp3.via.net [157.22.3.7]); Sat, 10 Nov 2018 16:07:11 -0800 (PST) X-Rspamd-Queue-Id: 9415083753 X-Spamd-Result: default: False [-1.19 / 200.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.994,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+MX]; MV_CASE(0.50)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-fs@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-0.99)[-0.991,0]; RCVD_COUNT_THREE(0.00)[3]; DMARC_NA(0.00)[via.net]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MX_GOOD(-0.01)[smtp3.via.net,smtp2.via.net,smtp4.via.net,smtp1.via.net]; NEURAL_SPAM_SHORT(0.73)[0.727,0]; RCVD_IN_DNSWL_LOW(-0.10)[7.3.22.157.list.dnswl.org : 127.0.5.1]; R_DKIM_NA(0.00)[]; IP_SCORE(-0.02)[country: US(-0.09)]; ASN(0.00)[asn:7091, ipnet:157.22.0.0/16, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[] X-Rspamd-Server: mx1.freebsd.org 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: Sun, 11 Nov 2018 00:15:04 -0000 NVMe drives are pretty cheap and there=E2=80=99s al least one = manufacturer that makes a JBOD that takes 24 or so NVMe drives. So, will ZFS on FreeBSD perform well if a made a largish ZFS filer with = all flash instead of spinning disks? Does ZFS have to have any special knowledge that the storage is flash = based? Thanks, joe