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Hello, we are planning to create 2 clusters: Cluster 1: Compute Nodes (Proxmox 5.2); Cluster 2: Storage Nodes (last version of Ceph) with initially 32 TB of storage on HDDs and at least 4 TB on SSD for mixed workload. In red some questions Cluster 1 3 x Compute Node CPU: 2 x Intel Xeon...

Ok thank you. Now I'm in testing phase and my Test Server has 4 old HDD: 2 for OS and the other 2 for storage (mirror) I create a pool with: zpool create -f -m /zfsFS/zstorage zstorage -o ashift=9 mirror /dev/disk/by-id/wwn-0x6842b2b05711e7002170862a0e0d42c8...

Hi wolfgang, at my question n.1 (For VMs (linux based, Windows based, etc..) is better to use volume or dataset/filesystem?) you answered that is better to use Volume because tool chain is optimized to zvols and FS has not O_DIRECT. Now I have read this proxmox wiki...

Thank you wolfgang Another question. Consider having the following scenario I have a pool named storage and within it a volume named VM100. In this volume I have a VM with ID 100. Now, at time t0 I do a snapshot of VM 100 with zfs snapshot storage/VM100@vm100-t0 Then I continue to use my...

Hi to all, I would try to use ZFS as storage system and, after reading many "how to" and tutorial, I'm still confused... My questions are: For VMs (linux based, Windows based, etc..) is better to use volume or dataset/filesystem? For LCX container is better to use volume or...

So, if I understood well, at this moment is not possible to add/configure namespace within a pool...

Hi, I mean namespace within a pool of ceph as described in this doc http://docs.ceph.com/docs/master/rados/operations/user-management/ "Namespace Objects within a pool can be associated to a namespace–a logical group of objects within the pool. A user’s access to a pool can be associated with...

Hi, I would like to add a namespace to a pool, but I wasn't able to find a guide and/or a command to do that. Could someone help me, please? I'm using a fresh installation of Proxmox 5.1. Thank you.

Wolfgang, I know the differences between public and cluster network. My question is: what happen if the 10 Gb switch of the cluster network stops to work?

What can you say me about a second ring also for Ceph cluster network? I was thinking: there is the possibility to configure a secondary Ceph cluster network that save me in case of the primary Ceph cluster network stops to work (Switch failure) ? Tahank you

Thank you very much

The Ceph network configuration is: 1 x 10 Gb for Ceph Cluster (communication between OSD) 1 x 10 Gb fo Ceph Public (on this interface Ceph "listen" the client requests) My doubt is: which interface does Proxmox use to connect to Ceph Public? I need to use another 1 x 10 Gb port connected to...

So, if I have understood well, Proxmox, and eventually other clients, will use Ceph Public network (10.10.2.0/24) to read and write on Ceph Cluster, but if so, I have to add a 10 Gb port to Proxmox and connect it to Ceph Public network, right? Thank you very much

Hi, first of all I'm very sorry for my poor English... In few weeks I have to setup a Proxmox/Ceph cluster of 3 Nodes. Each node is a Ceph node end a Proxmox node in wich I virtualize some VMs and some LXC (Debian 9) containers. Each node has: CPU: 2 x Intel Xeon Gold 6130 RAM: 196 GB SSD: 2...

OK, but how can I pin vCPU to real cores? Thank you

Hi to everybody, first of all I'm sorry for my English... My question is simple: if I give "n" cores to a VM in a server with Intel CPU (HT enabled), the "n" cores are REAL "n" cores or they are only "n/2" real cores (=n threads) ? For example: I create a new VM with 1 socket and 4 cores...