Re: [ceph-users] quick questions about a 5-node homelab setup

2019-01-18 Thread Eugen Leitl
On Fri, Jan 18, 2019 at 12:42:21PM +0100, Robert Sander wrote: > On 18.01.19 11:48, Eugen Leitl wrote: > > > OSD on every node (Bluestore), journal on SSD (do I need a directory, or a > > dedicated partition? How large, assuming 2 TB and 4 TB Bluestore HDDs?) > > You nee

[ceph-users] quick questions about a 5-node homelab setup

2019-01-18 Thread Eugen Leitl
(Crossposting this from Reddit /r/ceph , since likely to have more technical audience present here). I've scrounged up 5 old Atom Supermicro nodes and would like to run them 365/7 for limited production as RBD with Bluestore (ideally latest 13.2.4 Mimic), triple copy redundancy. Underlying OS

Re: [ceph-users] BlueStore with v11.1.0 Kraken

2016-12-24 Thread Eugen Leitl
On Sat, Dec 24, 2016 at 01:32:31PM +0100, Wido den Hollander wrote: > > The designated metadata servers are LXC VMs, so the question is whether > > I should give them 8 or 16 MB RAM. I also wonder whether the underlying > > data store (hardware RAID 1, 7200 rpm SATA) would profit from using > > S

Re: [ceph-users] BlueStore with v11.1.0 Kraken

2016-12-23 Thread Eugen Leitl
Hi Wido, thanks for your comments. On Fri, Dec 23, 2016 at 02:00:44PM +0100, Wido den Hollander wrote: > > My original layout was using 2x single Xeon nodes with 24 GB RAM each > > under Proxmox VE for the test application and two metadata servers, > > each as a VM guest. Each VM woud be about

[ceph-users] BlueStore with v11.1.0 Kraken

2016-12-22 Thread Eugen Leitl
Hi guys, I'm building a first test cluster for homelab, and would like to start using BlueStore since data loss is not critical. However, there are obviously no official documentation for basic best usage online yet. My original layout was using 2x single Xeon nodes with 24 GB RAM each under Prox