From owner-freebsd-fs@freebsd.org Sun Jan 20 16:00:31 2019 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 CA86D149711F for ; Sun, 20 Jan 2019 16:00:31 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: from connect.ultra-secure.de (connect.ultra-secure.de [88.198.71.201]) by mx1.freebsd.org (Postfix) with ESMTP id 309B36DB44 for ; Sun, 20 Jan 2019 16:00:29 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: (Haraka outbound); Sun, 20 Jan 2019 16:57:50 +0100 Received-SPF: None (connect.ultra-secure.de: domain of ultra-secure.de does not designate 217.71.83.52 as permitted sender) receiver=connect.ultra-secure.de; identity=mailfrom; client-ip=217.71.83.52; helo=[192.168.1.201]; envelope-from= Received: from [192.168.1.201] (217-071-083-052.ip-tech.ch [217.71.83.52]) by connect.ultra-secure.de (Haraka/2.6.2-toaster) with ESMTPSA id F439532D-1609-4010-93EE-01327792EF6C.1 envelope-from (authenticated bits=0) (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 verify=NO); Sun, 20 Jan 2019 16:57:45 +0100 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.0 \(3445.100.39\)) Subject: Re: ZFS on Hardware RAID From: Rainer Duffner In-Reply-To: <92646202.63422.1547910433715.JavaMail.zimbra@gausus.net> Date: Sun, 20 Jan 2019 17:00:16 +0100 Cc: Tom Evans via freebsd-fs Content-Transfer-Encoding: quoted-printable Message-Id: References: <92646202.63422.1547910433715.JavaMail.zimbra@gausus.net> To: Maciej Jan Broniarz X-Mailer: Apple Mail (2.3445.100.39) X-Haraka-GeoIP: EU, CH, 451km X-Haraka-ASN: 24951 X-Haraka-GeoIP-Received: X-Haraka-ASN: 24951 217.71.80.0/20 X-Haraka-ASN-CYMRU: asn=24951 net=217.71.80.0/20 country=CH assignor=ripencc date=2003-08-07 X-Haraka-FCrDNS: 217-071-083-052.ip-tech.ch X-Haraka-p0f: os="Mac OS X " link_type="DSL" distance=15 total_conn=1 shared_ip=N X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on spamassassin X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.1 X-Haraka-Karma: score: 6, good: 8115, bad: 6, connections: 8826, history: 8109, asn_score: 787, asn_connections: 848, asn_good: 788, asn_bad: 1, pass:asn, relaying X-Rspamd-Queue-Id: 309B36DB44 X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-0.24 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-0.41)[-0.406,0]; FROM_HAS_DN(0.00)[]; MV_CASE(0.50)[]; NEURAL_HAM_LONG(-0.65)[-0.653,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[ultra-secure.de]; AUTH_NA(1.00)[]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.01)[connect.ultra-secure.de]; RCPT_COUNT_TWO(0.00)[2]; NEURAL_HAM_SHORT(-0.33)[-0.329,0]; R_SPF_NA(0.00)[]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:88.198.0.0/16, country:DE]; MID_RHS_MATCH_FROM(0.00)[]; IP_SCORE(-0.34)[ipnet: 88.198.0.0/16(0.65), asn: 24940(-2.35), country: DE(-0.01)] 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, 20 Jan 2019 16:00:32 -0000 > Am 19.01.2019 um 16:07 schrieb Maciej Jan Broniarz = : >=20 > Hi, >=20 > I want to use ZFS on a hardware-raid array. I have no option of making = it JBOD. I know it is best to use ZFS on JBOD, but=20 > that possible in that particular case. My question is - how bad of an = idea is it. I have read very different opinions on that subject, but = none of them seems conclusive. >=20 > Any comments and especially case studies are most welcome. > All best, > mjb > _______________________________________________ What RAID-controller are you actually using?