Ceph Server: Difference between revisions

Revision as of 09:11, 17 February 2020

Note: This article got replaced by our reference documentation's ceph chapter: https://pve.proxmox.com/pve-docs/chapter-pveceph.html

Take a look at our Proxmox VE Ceph Benchmark 2018/02 for possible hardware decisions. https://www.proxmox.com/en/downloads/item/proxmox-ve-ceph-benchmark

You can subscribe to our Proxmox VE Channel on YouTube to get updates about new videos.

if lxc is on zfs with compression the actual disk usage can be far greater then expected. see https://forum.proxmox.com/threads/lxc-restore-fail-to-ceph.32419/#post-161287

One way to know actual disk usage:

restore backup to a ext4 directory and run du -sh , then do restore manually specifying target disk size.

make sure that you use virtio-scsi controller (not LSI), see VM options. I remember some panic when using LSI recently but I did not debug it further as modern OS should use virtio-scsi anyways. https://forum.proxmox.com/threads/restarted-a-node-some-kvms-on-other-nodes-panic.32806

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 == Further readings about Ceph ==
-Ceph comes with plenty of documentation [http://ceph.com/docs/master/ here]. Even better, the dissertation from the creator of Ceph - Sage A. Weil - is also [http://ceph.com/papers/weil-thesis.pdf available]. By reading this you can get a deep insight how it works.
+Ceph comes with plenty of documentation [http://ceph.com/docs/master/ here]. Even better, the dissertation from the creator of Ceph - Sage A. Weil - is also [https://ceph.com/wp-content/uploads/2016/08/weil-thesis.pdf available]. By reading that thesis you can get a deep insight how it works.
 *https://ceph.com/