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If you want to play with live migrations, try a cluster running Proxmox. It does support both Gluster and Ceph, and for smaller clusters ZFS (yes, you can live
by vetinari 5y ago
If you want to play with live migrations, try a cluster running Proxmox. It does support both Gluster and Ceph, and for smaller clusters ZFS (yes, you can live migrate VMs with local disks backed by ZFS, once you set up a replication). Also note that distributed filesystems (Ceph at least) want to own entire block device; thus you need something else to boot & run the system from (which is going to be a problem for slim NUCs above, that have only a single M.2 slot).
Ceph and Gluster are not a thing for small businesses, because for them to be practical, they want cluster sizes that are beyond needs of small businesses. It is a gun too big for them.
- elcritch 5y agoThanks I’ll have to check out Proxmox. For the NUC’s I’ve been booting from USB drives using Nerves. It works well! That leaves the entire m.2 for the application. Nerves targets embedded buts works perfectly for setting up a cluster of small devices. Using ZFS could be a good method, hmmm. Ceph and gluster aren’t meant for small offices, sure. But small businesses still spend a lot to setup IT servers. A system with reliable replication costs even more. So if one of those file systems could provide redundancy it’d be worth the extra disks. Of course many IT staff won’t know anything about those file systems, much less running them. I’d like one to just have a storage cluster for resilient backups for personal data.