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 UTF8SMTPS id E910370349 for ; Fri, 2 Apr 2021 11:28:31 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with UTF8SMTP id DF02FD458 for ; Fri, 2 Apr 2021 11:28:31 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [212.186.127.180]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with UTF8SMTPS id BF85DD440 for ; Fri, 2 Apr 2021 11:28:30 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with UTF8SMTP id 72A1F41CBC; Fri, 2 Apr 2021 11:28:30 +0200 (CEST) Message-ID: Date: Fri, 2 Apr 2021 11:28:29 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:88.0) Gecko/20100101 Thunderbird/88.0 Content-Language: en-US To: Proxmox VE user list , Leandro Roggerone , PVE User List References: From: Dominik Csapak In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-SPAM-LEVEL: Spam detection results: 0 AWL 0.174 Adjusted score from AWL reputation of From: address KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment NICE_REPLY_A -0.001 Looks like a legit reply (A) RCVD_IN_DNSWL_MED -2.3 Sender listed at https://www.dnswl.org/, medium trust SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [proxmox.com] Subject: Re: [PVE-User] mi first cluster 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, 02 Apr 2021 09:28:32 -0000 On 4/1/21 18:58, Leandro Roggerone wrote: > Hi guys : Hi, > Im preparing my second proxmox box to create my first cluster. > IT does not contain any usefull data yet , so I can play aorund a little > bit. > Have some questions. > Is it possible to create a cluster with only two boxes ? yes > I understood it is possible , but can not move VMs without service > disruption. if you mean HA, yes you need at least 3 nodes or 2 nodes + a quorum device, also the storage needs to be avaiable on both nodes live migration still works even with 2 nodes, and even with local storage > And if I want to move VMs without services disruption I need a third box. > > What is ceph storage for ? > what is ZFS pool for ? what do you mean? ceph is distributed, redundant, software defined storage zfs is a type of local filesystem and disk management > In case I need I can add it on any of my available bays o any box ? > > Do pve boxes need to be on same network subnet ? generally no, i think, but it makes it easier > I have two datacenters , I was thinking in the idea to install them on each > location just for redundancy. > Lets supose network connection performance is optimal ... Is there any > problem with that ? i'd advise against that. our clustering stack uses corosync, which needs low latency links to work properly > Any other clustering good practice advice would be wellcome. > Thanks. > > > Libre > de virus. www.avast.com > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > _______________________________________________ > pve-user mailing list > pve-user@lists.proxmox.com > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user > >