From owner-freebsd-performance@freebsd.org Mon Oct 12 17:00:22 2015 Return-Path: Delivered-To: freebsd-performance@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 3A3D1A113A5 for ; Mon, 12 Oct 2015 17:00:22 +0000 (UTC) (envelope-from dan@langille.org) Received: from clavin2.langille.org (clavin2.langille.org [199.233.228.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "clavin.langille.org", Issuer "StartCom Class 2 Primary Intermediate Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 137871A4D for ; Mon, 12 Oct 2015 17:00:21 +0000 (UTC) (envelope-from dan@langille.org) Received: from (clavin2.int.langille.org (clavin2.int.unixathome.org [10.4.7.7]) (Authenticated sender: hidden) with ESMTPSA id 519958462 for ; Mon, 12 Oct 2015 17:00:14 +0000 (UTC) From: Dan Langille X-Pgp-Agent: GPGMail 2.6b2 Content-Type: multipart/signed; boundary="Apple-Mail=_7156F7BC-AE6C-49A1-B696-7E4E720A641A"; protocol="application/pgp-signature"; micalg=pgp-sha512 Subject: Measuring ZFS configuration differences Date: Mon, 12 Oct 2015 13:00:08 -0400 Message-Id: <8B37FEDC-218A-4071-8CB7-48361BB72B1D@langille.org> To: freebsd-performance@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 9.0 \(3094\)) X-Mailer: Apple Mail (2.3094) X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Oct 2015 17:00:22 -0000 --Apple-Mail=_7156F7BC-AE6C-49A1-B696-7E4E720A641A Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Following up on the discussions during EuroBSDCon 2015 (Stockholm) = during the FreeBSD Developer Summit regarding various ZFS configuration settings, I write to start = our implementation phase now that some usual suspects have joined the list. re https://wiki.freebsd.org/201510DevSummit/Performance I think the first order of business is granting access rights to the = server (varm) in question: http://dan.langille.org/2015/07/19/varm/ During the workshop, mention was made of serial access. I can arrange = that. The server has IPMI, however, my first thought: 1 - connect a USB-serial cable to varm & link that to another server in = my rack. 2 - create a jail in that server and give it access to that serial = connection 3 - redirect incoming port XYZ to that jail via a public-key-only ssh = connection 4 - give people access Any suggestions? =E2=80=94 Dan Langille http://langille.org/ --Apple-Mail=_7156F7BC-AE6C-49A1-B696-7E4E720A641A Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQJ8BAEBCgBmBQJWG+cdXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ1MTE2RjM0ODIzRDdERDM4OTY0OUJBNzdF QjIxNTlERUU5NzI3MzlGAAoJEOshWd7pcnOfoFkP+gOAZGf4TVHqPq0wPwPXP/82 kMwfUj9Mj6yD2c5u7vdKT1DPHXWBcmWd9Wqv8zDoJQw/C+K0gRykMcNDyVkJpQU0 vY7njBk4I287IiH7d1vRoFxvQxCLKNl/unladjwzaRylCVFiGzFhGHX3F2iZSuDn it2UzbCZuqLNvJvO8nNuhl/oe/ZYq3nomBAt+KAhuLnMQAqEmUTu3YV5JGRegve7 9kpTzZRgncvzPDHoiBd8VUfIgvd9gQFm3+bjf8EEkkeKfshcOkCU/5AUA7j41Tsb 7pUSY5ZCcvsULYmcu9ebK5myE04k9tdb3gXU2amB8BAbQFT9rBLdajzM8rcHyFob Mblv2e2b/HikRMYyRTHN9Zc+BQ1XokakyStzbmXaaVrLeMlRMD74DgAGfRTKmFbD dAzY+rjzEnddfteNZDgX0Coqa4WaUIii4hMlgPou+Vc/O2FpqnJGVt1Qgqr+KPH6 HuNY5vVpCKcTn+LPmqhWlCXZl5fUvZwdAm9dGx5YS3yTcU2P89F/rDQWeaDzxXhM Nee5lfZpsZnjUZOYFTzb3qcJzmNTE6M79yhxZ59ibetE8w03Mga4EnNzMBdeoq6f xXcN10lVqQwICNkmJCbQClzXPC7UFsclihvbgha931JJCmZlzpokJYhpa6RF0t+y DjUOeDPhopWR3vmPzK8c =iOs1 -----END PGP SIGNATURE----- --Apple-Mail=_7156F7BC-AE6C-49A1-B696-7E4E720A641A--