From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (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 lists.proxmox.com (Postfix) with ESMTPS id 2349761D5B for ; Fri, 10 Jul 2020 17:21:19 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 0DC8723A08 for ; Fri, 10 Jul 2020 17:20:49 +0200 (CEST) Received: from hormel.elettra.eu (hormel.elettra.trieste.it [140.105.206.207]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id D8F8F239F9 for ; Fri, 10 Jul 2020 17:20:47 +0200 (CEST) Received: from hormel.elettra.eu (localhost.localdomain [127.0.0.1]) by localhost (Email Security Appliance) with SMTP id 331341C4A5C_F08874FB for ; Fri, 10 Jul 2020 15:20:47 +0000 (GMT) Received: from [140.105.2.28] (iztok-pc.elettra.trieste.it [140.105.2.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by hormel.elettra.eu (Sophos Email Appliance) with ESMTPSA id 0144E1C230E_F08874FF for ; Fri, 10 Jul 2020 15:20:47 +0000 (GMT) To: pve-user@lists.proxmox.com References: <2ca19e1b-4c4c-daf7-3a48-aef4a6150ea9@elettra.eu> <521875662.472.1594388487491@webmail.proxmox.com> From: Iztok Gregori Message-ID: <594092ce-e65d-f9b4-a66c-84ac001f9df9@elettra.eu> Date: Fri, 10 Jul 2020 17:20:46 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <521875662.472.1594388487491@webmail.proxmox.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit X-SASI-RCODE: 200 X-SPAM-LEVEL: Spam detection results: 0 KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: Re: [PVE-User] Proxmox Backup Server (beta) X-BeenThere: pve-user@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE user list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jul 2020 15:21:19 -0000 On 10/07/20 15:41, Dietmar Maurer wrote: >> Are you planning to support also CEPH (or other distributed file >> systems) as destination storage backend? > > It is already possible to put the datastore a a mounted cephfs, or > anything you can mount on the host. Is this "mount" managed by PBS or you have to "manually" mount it outside PBS? > > But this means that you copy data over the network multiple times, > so this is not the best option performance wise... True, PBS will act as a gateway to the backing storage cluster, but the data will be only re-routed to the final destination (in this case and OSD) not copied over (putting aside the CEPH replication policy). So performance wise you are limited by the bandwidth of the PBS network interfaces (as you will be for a local network storage server) and to the speed of the backing CEPH cluster. Maybe you will loose something on raw performance (but depending on the CEPH cluster you could gain also something) but you will gain the ability of "easily" expandable storage space and no single point of failure. Thanks a lot for your work! Iztok Gregori