I'll give you an example for hardware to your ceph cluster

[@saposada]

Nice video. Just startin with Ceph. Quick question how many of these devices would i need to setup a lab at home. I think is 3 for cluster plus one as client.

[@DanielPersson]

Hi. Theoretically, you could set up a cluster with only one host, but that is not much of a cluster. You need to have an odd number of monitors so they can have a quorum and vote about the correct structure. After that, you add more data hosts and can use the same hosts for data. But if you want a cluster with high availability and redundancy, I would say that three replication hosts with three copies on different hosts are a great start. You can watch this video: kzbin.info/www/bejne/gqmngqx8jKmBfqs I cover the installation and some things you need to keep in mind. I hope this helps. Thank you for watching my videos. Best regards Daniel

[@TerraMagnus]

Nice job of advocating for Neurodiversity in a practical way during this video.

[@MikeDent]

Is network speed of 1gb/s good enough for a 3 node cluster?

[@DanielPersson]

Hi Mike. It all depends on what you need to do with your cluster. We have a 10GB backend plus a 10GB frontend network for your cluster because we need to migrate data and handle requests on a pretty large scale. However, my backup solution at home uses a 10MB link, which is plenty for my use case. I hope this answers your question. Thank you for watching my videos. Best regards Daniel

[@MarkConstable]

A year later and the best valued system I have found recently is a Terramaster F2-423

[@DanielPersson]

Hi Mark. That almost sounds like a review :) It would not fit my purpose of a small 8 Gb memory box that can run one data drive with another system drive. Maybe in the future, I will buy a chassis with a 16 Gb memory system with two data drives for efficiency. But the OSD service needs more memory to work. And the TerraMaster seems like a complete solution with Raid, but it is not something I need for my Ceph cluster. It might be good for a small business that stores some not-so-important data with a simplistic Raid solution. But for anything more mission-critical, you should at least have 2-3 copies on separate drives, and then a Ceph cluster or a Raid box with Raid 5 or better is in order. For the best result, you should always have a copy offsite as well. Thank you for watching my videos. Best regards Daniel

[@MarkConstable]

@@DanielPersson My TM F2-234 has 32 GB ram, 2x 2 TB NVMe and 2x 2 TB SSD. It has Proxmox installed on ZFS (mirrored across the pair of NVMe drives) with Ceph on one 2 TB SSD and GlusterFS on the other 2 TB SSD spread across 3 similar spec'd clustered nodes. Both Ceph and Gluster use 3x replication. I'm comparing the practicality and resource usage of Ceph vs Gluster, but will probably remove Gluster and use those drives as extra Ceph OSDs, once I figure out how to implement CephFS without blowing things up. I'm still happy to suggest the TM F2 (or F4) is the best valued and most flexible mini-homelab host node available in 2022.

[@mouradouddah5934]

first view😎