From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <gentoo-user+bounces-199652-garchives=archives.gentoo.org@lists.gentoo.org> Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 610F2158012 for <garchives@archives.gentoo.org>; Tue, 13 Sep 2022 08:40:35 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 64EA6E08F0; Tue, 13 Sep 2022 08:40:29 +0000 (UTC) Received: from mail-gw.thundermail.uk (mail-gw.thundermail.uk [149.255.60.75]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 9B300E08E5 for <gentoo-user@lists.gentoo.org>; Tue, 13 Sep 2022 08:40:28 +0000 (UTC) Received: from mailgw01.thundermail.uk (mail-gw.thundermail.uk [149.255.60.66]) by mail-gw.thundermail.uk (Postfix) with ESMTPS id 06B6A600BEE3 for <gentoo-user@lists.gentoo.org>; Tue, 13 Sep 2022 09:40:26 +0100 (BST) X-ASG-Debug-ID: 1663058413-0554137a07457ade0001-LfjuLa Received: from cloud220.unlimitedwebhosting.co.uk (cloud220.unlimitedwebhosting.co.uk [149.255.60.183]) by mailgw01.thundermail.uk with ESMTP id yYt7GDWCloM8qoKo (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for <gentoo-user@lists.gentoo.org>; Tue, 13 Sep 2022 09:40:13 +0100 (BST) X-Barracuda-Envelope-From: confabulate@kintzios.com X-Barracuda-Effective-Source-IP: cloud220.unlimitedwebhosting.co.uk[149.255.60.183] X-Barracuda-Apparent-Source-IP: 149.255.60.183 Received: from lenovo.localdomain (230.3.169.217.in-addr.arpa [217.169.3.230]) by cloud220.unlimitedwebhosting.co.uk (Postfix) with ESMTPSA id 3509CC74F39 for <gentoo-user@lists.gentoo.org>; Tue, 13 Sep 2022 09:40:13 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kintzios.com; s=default; t=1663058413; bh=irHH6mlOPiO1yj4XmwyvCmAsFkysStnUpWj1u384IfY=; h=From:To:Subject; b=AdtTHpWc6i4dynywrE8QLvBoYejx6pUGXsMLaECnVnsHleU9H8i4niDef+s2QmVMO iRrkQxmgqthLl3IDkrHB8RaeR71jQW6s1X8SOcd5DZXbZSRdUxVGGLCwDS7Q213Dpj IlvfdQyBEyeDKvrc+JeKXB5YNSe7G751RaPQ4Igw= From: Michael <confabulate@kintzios.com> To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] RE: [gentoo-user] Encrypted hard drives on LVM and urgent power shutdowns. Date: Tue, 13 Sep 2022 09:40:03 +0100 X-ASG-Orig-Subj: Re: [gentoo-user] RE: [gentoo-user] Encrypted hard drives on LVM and urgent power shutdowns. Message-ID: <2255065.ElGaqSPkdT@lenovo.localdomain> In-Reply-To: <20220913055043.4A6B2E08F6@pigeon.gentoo.org> References: <1b6f36dd-f378-2d04-3df1-0541b9d944e9@gmail.com> <MW2PR07MB4058A5D6669E2C8886FC497CD2449@MW2PR07MB4058.namprd07.prod.outlook.com> <20220913055043.4A6B2E08F6@pigeon.gentoo.org> Precedence: bulk List-Post: <mailto:gentoo-user@lists.gentoo.org> List-Help: <mailto:gentoo-user+help@lists.gentoo.org> List-Unsubscribe: <mailto:gentoo-user+unsubscribe@lists.gentoo.org> List-Subscribe: <mailto:gentoo-user+subscribe@lists.gentoo.org> List-Id: Gentoo Linux mail <gentoo-user.gentoo.org> X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart4742706.GXAFRqVoOG"; micalg="pgp-sha256"; protocol="application/pgp-signature" X-PPP-Message-ID: <166305841358.4052944.1708498831242162577@cloud220.unlimitedwebhosting.co.uk> X-PPP-Vhost: kintzios.com X-Barracuda-Connect: cloud220.unlimitedwebhosting.co.uk[149.255.60.183] X-Barracuda-Start-Time: 1663058413 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://149.255.60.66:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at thundermail.uk X-Barracuda-Scan-Msg-Size: 2566 X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=1.9 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.100748 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Archives-Salt: c51547d5-1338-413f-8401-b3eae88fa720 X-Archives-Hash: 1a5d8375cea0ec59b673f900e8a5caf8 --nextPart4742706.GXAFRqVoOG Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="UTF-8"; protected-headers="v1" From: Michael <confabulate@kintzios.com> To: gentoo-user@lists.gentoo.org Reply-To: confabulate@kintzios.com Date: Tue, 13 Sep 2022 09:40:03 +0100 Message-ID: <2255065.ElGaqSPkdT@lenovo.localdomain> In-Reply-To: <20220913055043.4A6B2E08F6@pigeon.gentoo.org> MIME-Version: 1.0 On Tuesday, 13 September 2022 06:47:21 BST Thomas Mueller wrote: > from Laurence Perkins: > > Some of the higher-end UPS models do have diagnostic modes for simulating > > various events to make sure the connected systems behave as desired. A > > very few of the consumer-grade ones do as well. But how to do it is > > model specific, so you'll have to dig up the documentation. > > > > Commercial-grade units also often have a DC port on the back so you can > > plug in larger battery banks and/or hotswap battery banks during extended > > outages. > > > > If you want an arbitrarily large battery bank, just get a decent power > > inverter heavy enough to run your load and a battery float charger that > > can push enough amps to keep up, then put as big a stack of batteries as > > you like between the two. The nicer inverters will even warn you when > > the batteries get low. > > > > You can often get used batteries from the local automotive shop for just > > the core charge. Just because it can't provide 600 amps to start a car > > any more doesn't mean it can't provide 60 to run your computers. > > Obviously they'll require more regular maintenance, but it's hard to beat > > the price. > > > > LMP > > How would you physically connect the automotive battery to the computer, and > would you need the shell of the old UPS? Yes, you need the *contents* of the UPS shell. It contains the rectifier to be able to recharge the battery/batteries and the inverter to be able to feed the PC from the batteries. I've also used a car battery out of an old Mini to keep equipment running during prolonged power outages. I connected it in parallel to the UPS battery. After the power returned, almost two days later, I disconnected it and recharged it with a car battery charger, which could take the higher amperage. Trickle-charging should be OK via the UPS. > I have an old Tripp-Lite UPS, batteries are dead and no longer rechargeable. Why don't you replace them? They are not particularly expensive, although I have not looked at UPS battery prices lately. > Would you connect only the computer, or would you connect the monitor as > well? Would you connect networking equipment? > > Tom I connect modem, router, PC and monitor, so that whatever operation is taking place it can be completed, applications running ended and the PC shutdown manually. If the PC is running unattended when the power interruption happens, eventually the upssched will shutdown the PC. --nextPart4742706.GXAFRqVoOG Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. 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