From owner-freebsd-hackers@freebsd.org Sun Mar 12 20:54:11 2017 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4D038D09842 for ; Sun, 12 Mar 2017 20:54:11 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 2A8431FE8 for ; Sun, 12 Mar 2017 20:54:11 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: by mailman.ysv.freebsd.org (Postfix) id 29D7ED0983F; Sun, 12 Mar 2017 20:54:11 +0000 (UTC) Delivered-To: hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 297C9D0983E for ; Sun, 12 Mar 2017 20:54:11 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: from mail-qk0-x236.google.com (mail-qk0-x236.google.com [IPv6:2607:f8b0:400d:c09::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id EDAB91FE6 for ; Sun, 12 Mar 2017 20:54:10 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: by mail-qk0-x236.google.com with SMTP id 1so209870611qkl.3 for ; Sun, 12 Mar 2017 13:54:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=longcount-org.20150623.gappssmtp.com; s=20150623; h=from:content-transfer-encoding:mime-version:date:subject:message-id :to; bh=sHkBPGzUOo6mI4xuceB0B6eozP68Vc13aYFTNhcmL3Q=; b=DK4O0XNFUXTBWpC/C5mfUcoN7ul7uYZY4dJIoBkQlAOCMdP3bcxXG9gdmshOSmhRkQ 1bPuwsS95emHmMWMBuGAicjoWBrwdJf9ukfAS0LVWX93jpS5V2X4/Cs2i/kDM3LTcQgQ jrrw4tkEfQ+YXQwvXtsHJtktdZ/M1IQEd6KmDPj/otvQlHoYQXl1TkxWYiNlB3cdq4t5 i4wTQRi3hD+N91sDSPqvzpNFakAMZ5MfBBmj9SRLbOrR9mBXKWOxu33ldRWGCuhQU/bm 0SjSRe0dC4IHpxAHJGvoSPrwR6dUW0JKCUal45g3W/tI2EzCbke/TJnsQn9ZKnvcvLt8 cMiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:content-transfer-encoding:mime-version:date :subject:message-id:to; bh=sHkBPGzUOo6mI4xuceB0B6eozP68Vc13aYFTNhcmL3Q=; b=Cg9/6f9MVJ/XSDO5zBdgPB0jBnqeeFUzWlx24TkFh4aqJvpTQT/3o2XmG8XED7lbZy THbowTpexlH6EnIqc37Oan1xGBeoZsKIkADDMoFy9iAgOz7PYdKVfbBLWj14l42Ex85k SGbV1AbxOnC/q5DB59dn20HjOwBnRMWJoy9xi21U4wXbtrP9weCSbRlmehY2GIqb3Eg7 qur+KCsCo4nd9PI9TZWTTRRfmhyfo4bmroRcmA/LTqMHUDgnhwgomMGRn4zZNv0S31pe LFPFMAz7LTwF5V6h37OxPwGKQ6dR0XiVRY6jWypS32/U4Bxee9ij4XrPpefNKTA5DFor I/+Q== X-Gm-Message-State: AFeK/H2KuSUsbKeQaXfjS4JMelvgar8xQu3/m70XK9iNjz+Bvygg6k+zcxkYMnhdKVYMgQ== X-Received: by 10.55.118.1 with SMTP id r1mr27122168qkc.236.1489352049674; Sun, 12 Mar 2017 13:54:09 -0700 (PDT) Received: from [25.244.225.254] (ool-3f8fcab5.dyn.optonline.net. [63.143.202.181]) by smtp.gmail.com with ESMTPSA id o130sm10871895qke.15.2017.03.12.13.54.08 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 12 Mar 2017 13:54:08 -0700 (PDT) From: Mark Saad Mime-Version: 1.0 (1.0) Date: Sun, 12 Mar 2017 16:54:07 -0400 Subject: Mini sas forward/ reverse cables ? Message-Id: <4AF2C082-2494-42DE-B2C2-9C750BF39F76@longcount.org> To: hackers@freebsd.org X-Mailer: iPhone Mail (14D27) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Mar 2017 20:54:11 -0000 All I read this post on zfs corruption and there is an interesting comment abo= ut cable types . http://changelog.complete.org/archives/9769-silent-data-corruption-is-real I have a server that has a similar issue ; but due to its age I assumed data= corruption on the drives was a way of life . Disks get old motors burn out p= arts fail etc. Zfs protected my data but I swapped 4 disks out of 60 in the= last 18 months . The part of the story I found interesting was how the dis= ks didn't show up in the controller bios . I have that issue with a similar c= ard on this server . So has anyone ever seen this cabling issue ? Is it wor= th changing? How do I know which cable I have ?=20 --- Mark Saad | nonesuch@longcount.org=