On Tue, 16 Jul 2013, Ta Ba Tuan wrote:
> Thanks Sage,
> I wories about returned capacity when mounting CephFS.
> but when disk is full, capacity will showed 50% or 100% Used?
100%.
sage
>
>
> On 07/16/2013 11:01 AM, Sage Weil wrote:
> > On Tue, 16 Jul 2013, Ta Ba Tuan wrote:
> > > Hi everyone.
> > >
> > > I have 83 osds, and every osds have same 2TB, (Capacity sumary is 166TB)
> > > I'm using replicate 3 for pools ('data','metadata').
> > >
> > > But when mounting Ceph filesystem from somewhere (using: mount -t ceph
> > > Monitor_IP:/ /ceph -o name=admin,secret=xxxxxxxxxx")
> > > then capacity sumary is showed "160TB"?, I used replicate 3 and I think
> > > that
> > > it must return 160TB/3=50TB?
> > >
> > > Filesystem Size Used Avail Use% Mounted on
> > > 192.168.32.90:/ 160T 500G 156T 1% /tmp/ceph_mount
> > >
> > > Please, explain this help me?
> > statfs/df show the raw capacity of the cluster, not the usable capacity.
> > How much data you can store is a (potentially) complex function of your
> > CRUSH rules and replication layout. If you store 1TB, you'll notice the
> > available space will go down by about 2TB (if you're using the default
> > 2x).
> >
> > sage
>
>
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