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Well, a RAIDZ would be the RAID5 equivalent. http://www.zfsbuild.com/2010/05/26/zfs-raid-levels/ Check this article for more information on setting it up. http://www.howtogeek.com/175159/an-introduction-to-the-z-file-system-zfs-for-linux/

I have used DRBD9 in the past (finally more than 2 nodes!) and it works very well, but I would bet that for the sake of simplicity, Ceph will continue to dominate their attention. The GPL deal might have been the final tip off the ledge.

@Jerome, you can run CEPH with your 1 GB and regular SATA drives. I would suggest setting up a virtual environment with VirtualBox with 3 Proxmox 4.4 nodes and testing it out. You just won't get great performance using the lesser equipment. It is very IO intensive.

Your capacity with CEPH will be determined by the number of disks (osd's) and the number of replica's of the pg's.

I have seen that kind of video effect myself, but given some time, it corrects itself on my end. Can you ssh/ping it after say, 5 minutes?

I use Freenas 9.10 and it works quite well via NFS. Just make sure to read up on the ZFS file system.

Just something to reference the error. http://stackoverflow.com/questions/20737204/comprehensive-list-of-rsync-error-codes

Ok, due to work matters, I never got back to connecting everything back up again, but I believe I know why this happened. My min_size is 3 and probably should have been 1. Due to only 1 replica being available, perhaps this affected the I/O in this case...

Please note the part about setting up the "keyring".

Within the browser for one of your nodes, select a node on the left-hand list. Under the CEPH option, find the Pool button. Once you create a pool, you choose the Datacenter button. Under storage, select RBD to set up a shared storage connection.

Take your pick: http://tracker.ceph.com/projects/cephfs/issues?sort=tracker%2Cid%3Adesc

http://pve.proxmox.com/pipermail/pve-devel/2016-February/019282.html Dietmar specifically answers the question here.

You could always try this technique to get the entire pool(s). http://nicksabine.com/post/ceph-backup/

I had to take it offline for today but will post ASAP. Thanks for the help. To answer the quick questions: No, noout is not active No, it never recovered

# begin crush map tunable choose_local_tries 0 tunable choose_local_fallback_tries 0 tunable choose_total_tries 50 tunable chooseleaf_descend_once 1 tunable straw_calc_version 1 # devices device 0 osd.0 device 1 osd.1 device 2 osd.2 device 3 osd.3 device 4 osd.4 device 5 osd.5 device 6 osd.6...

Has anyone tested a failure with CEPH 0.94.9 using 3 replications under 4.4? I have a test environment set up using 4 proxmox 4.4 nodes (clustered) each with 2 OSD's (8 total). Each OSD is 256GB. 3 monitors. A pool named test is configured for 3/3. 256 PG's. 3 VM's using 100 GB RAW disks...

I have seen this issue with previous versions of Proxmox, but 4.4 works fine for me. I uploaded a 5.6 GB ISO to multiple nodes with no problems. The local filesystem was ZFS, though.

https://pve.proxmox.com/pve-docs/pve-admin-guide.html#chapter_vzdump Backup and restore.

It would probably be easier just to setup the Ceph environment from scratch with your equipment. That re-configuring idea sounds like a disaster in the waiting.

Misunderstanding. Disregard.