From: Dominik Csapak <d.csapak@proxmox.com>
To: Proxmox VE user list <pve-user@lists.proxmox.com>,
Leandro Roggerone <leandro@tecnetmza.com.ar>,
PVE User List <pve-user@pve.proxmox.com>
Subject: Re: [PVE-User] mi first cluster
Date: Fri, 2 Apr 2021 11:28:29 +0200 [thread overview]
Message-ID: <fa30f4c5-588d-ec85-8e44-61bcb61c1d41@proxmox.com> (raw)
In-Reply-To: <CALt2oz4+=jOqN8OtcXthqdrFt6+CghQBc5cDtLFpV1tPM5vLng@mail.gmail.com>
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.
>
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prev parent reply other threads:[~2021-04-02 9:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 16:58 Leandro Roggerone
2021-04-02 9:28 ` Dominik Csapak [this message]
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