Hi Ashish,
Yep, that would be the correct way to do it.
If you already have a cluster running, a ceph -s will also show usage, ie like:
>ceph -s
pgmap v1842777: 8064 pgs: 8064 active+clean; 1069 GB data, 2144 GB used, 7930 GB / 10074 GB avail; 3569B/s wr, 0op/s
This is a small test-cluster with 2x replica, 1TB data used and roughly 2x the amount used.
Also 'rados df' will show usage pr. pool :)
Cheers,
Martin
On Wed, Mar 13, 2013 at 11:15 AM, Ashish Kumar <kumar@xxxxxxxxxxx> wrote:
Hi Guys,
Just want to know, how can I calculate the capacity of my ceph cluster. I don't know whether a simple RAID system calculation will work or not.
I have 5 servers each with the storage of 2TB and there are three copies of data, will it be ok to calculate the capacity in following way:
5(servers)* 2TB/3.
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