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[205.233.125.12]) by smtp.gmail.com with ESMTPSA id s7sm447542qta.31.2021.12.07.11.26.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Dec 2021 11:26:40 -0800 (PST) From: Maxim Cournoyer To: Ludovic =?utf-8?Q?Court=C3=A8s?= Subject: Re: Upgrading storage on bordeaux.guix.gnu.org References: <87ee762at1.fsf@cbaines.net> <8735ngb39u.fsf@gnu.org> <8735ngnjfc.fsf@elephly.net> <87tufsz0g3.fsf@gnu.org> <87tufsq8ck.fsf@elephly.net> <87pmq9nbfe.fsf_-_@gnu.org> Date: Tue, 07 Dec 2021 14:26:39 -0500 In-Reply-To: <87pmq9nbfe.fsf_-_@gnu.org> ("Ludovic =?utf-8?Q?Court=C3=A8s?= =?utf-8?Q?=22's?= message of "Mon, 06 Dec 2021 13:51:49 +0100") Message-ID: <87a6hcjjww.fsf@gmail.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::731 (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::731; envelope-from=maxim.cournoyer@gmail.com; helo=mail-qk1-x731.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel@gnu.org Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1638905233; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post:dkim-signature; bh=DUoR1MoernXjcKxL3sU/uzN5aoPIjgxEXoBT6Mg6ucw=; b=MXzgx+NWlDJhDWDjfd+03qJr3bJO7IOHMgaNp1Sd/afgjchd3D2S3B2KOAhsMoKmQASafg ArBZVNvGR9b8w5sb8wp97MMpkpt29Mxxz+nIjN4A0f0bZQ48QQhNiSbPazikED41eknZnN SpdO9+Pf6BujHmSJn1D6x5sMROqDIPSWHHw0PDFYo4vTjFZ3DFU6jzcbVMhIsTHj0JaP9q 2N0tzbV1mfhsMfZW1AyJYSZaMswZ9IRtaj14p7w+dNFHBokfw8M9LpdPUfyR5DKxpqPDY/ L1hUyEv0JAij6MJxbXX0+HrlTNLZD4B0pDmUUrSFsaWdF3q/XIedliXAhrVf1g== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1638905233; a=rsa-sha256; cv=none; b=cqYXV7udO3sueE8IRLV8yHnrtsfRejFAbVcASYmhoPx5XeylRGD7x/cCrIVGMJpW6XFtT6 T+QMo7cjfe33Mpf0vfr/g6WnByEHys8/29iWHJoFWUMdt75Js+pJPcrSnnTB+XaNSg3Rq1 blwegFE4fBTnoMn5pwhg3c2ULaST6c82DrKyK6Mve+CN6pO8UhUmYIInZxrRfnj6foaen/ AgXRQSYsaTIrAE7zA0pp1oW9RhcEIlYjWtpxv3G5axEBGJrNz0JJEAcff2oVkZU+y674xo lMx3iPhcO+i1yK82jaqmWoU92/ZP84HECSvHqDhdGNKzK+ZvJhcLWYNPsGpEcw== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=Tcyr1HCy; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -2.35 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=Tcyr1HCy; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: A41642DCE5 X-Spam-Score: -2.35 X-Migadu-Scanner: scn0.migadu.com X-TUID: lG0SDAqxlVYC Hello, Ludovic Court=C3=A8s writes: > Hello! > > (+Cc: Andreas.) > > Ricardo Wurmus skribis: > >> [space is running out on bayfront, so I wrote:] >> >>> Remember that I=E2=80=99ve got three 256G SSDs here that I could send to >>> wherever bayfront now sits. With LVM or a RAID configuration these >>> could just be added to the storage pool =E2=80=94 if bayfront has >>> sufficient slots for three more disks. >> >> You wrote in response: >> >>> Good to know. In that case we=E2=80=99d need to come up with (1) an up= dated >>> Guix System config with LVM, and (2) a way to copy the existing >>> store >>> over to the new storage, which sounds tricky if the existing disk is >>> to >>> be kept. >> >> We could first install Guix System with the adjusted bayfront config >> on a separate machine (e.g. on a build node at the MDC), onto a volume >> with LVM (using as many of the SSDs as needed). Copy signing keys etc >> from bayfront. Then we=E2=80=99d pretty much export/import the bayfront= store >> over the network. Once everything has been copied, we turn off >> bayfront, swap the disks, boot it up again. If everything works all >> right we add the original disk (and any unused left-over disks) to the >> LVM volume to extend the storage pool. > > Sounds like a plan. But note that there=E2=80=99s the store and there=E2= =80=99s the > cached nars, though maybe we can tolerate missing, say, a week or two of > nars. I don't know anything about the Bayfront machine specifics, but if it was running with a Btrfs file system, it could be extendable live by adding the new drives to it in Btrfs RAID0 configuration. Cheers, Maxim