From owner-freebsd-stable@freebsd.org Tue Apr 30 08:26:30 2019 Return-Path: Delivered-To: freebsd-stable@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 02AFB158888C for ; Tue, 30 Apr 2019 08:26:30 +0000 (UTC) (envelope-from pi@freebsd.org) Received: from home.opsec.eu (home.opsec.eu [IPv6:2001:14f8:200::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 86C129325A for ; Tue, 30 Apr 2019 08:26:29 +0000 (UTC) (envelope-from pi@freebsd.org) Received: from pi by home.opsec.eu with local (Exim 4.92 (FreeBSD)) (envelope-from ) id 1hLO5r-0003ze-1Y; Tue, 30 Apr 2019 10:26:27 +0200 Date: Tue, 30 Apr 2019 10:26:27 +0200 From: Kurt Jaeger To: Michelle Sullivan Cc: freebsd-stable Subject: Re: ZFS... Message-ID: <20190430082626.GX72200@home.opsec.eu> References: <30506b3d-64fb-b327-94ae-d9da522f3a48@sorbs.net> <56833732-2945-4BD3-95A6-7AF55AB87674@sorbs.net> <3d0f6436-f3d7-6fee-ed81-a24d44223f2f@netfence.it> <17B373DA-4AFC-4D25-B776-0D0DED98B320@sorbs.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <17B373DA-4AFC-4D25-B776-0D0DED98B320@sorbs.net> X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Apr 2019 08:26:30 -0000 Hi! > If one triggers such a fault on a production server, how can one > justify transferring from backup multiple terabytes (or even petabytes > now) of data to repair an unmountable/faulted array.... because all > backup solutions I know currently would take days if not weeks to > restore the sort of store ZFS is touted with supporting. Isn't that the problem with all large storage systems ? Even mainframe storage (with very different concepts behind it) can become messed up so much that there's no hope left. -- pi@opsec.eu +49 171 3101372 One year to go !