[PVE-User] Ceph unterstanding questions
sysadmin-pve at cognitec.com
Sun Mar 19 01:24:33 CET 2017
On 03/18/2017 11:17 PM, Daniel wrote:
> Hi there,
> i created a Cephcluster with 6 OSDs. Each OSD has 500GB
> In Proxmox I created a Pool with Size 2 Min 1.
> Ceph df shows me I can use round about 1300GB Disk space.
> Now I wanted to understand what Size and Min means.
> I think Size means duplicate 2 times – that’s the reason why I can use only the half of 2700GB which also means I can break 3 HDDs.
> But what means Min? I also can’t find anything in the documentation.
The min 1, is the min_size option of the pool and tells ceph what should be the minimal number of replicas to serve I/O.
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