Yes, that is the TOTAL amount in the cluster. For example, if you have a replica size of '3' , 81489 GB available, and you write 1 GB of data, then that data is written to the cluster 3 times, so your total available will be 81486 GB. It definitely threw me off at first, but seeing as you can have multiple pools with different replica sizes it makes sense to report the TOTAL cluster availability, rather than trying to calculate how much is available based on replica size. -----Original Message----- From: ceph-users-bounces@xxxxxxxxxxxxxx [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of Marco Aroldi Sent: Friday, March 15, 2013 3:49 PM To: ceph-users@xxxxxxxxxxxxxx Subject: Space available reported on Ceph file system Hi, I have a test cluster of 80Tb raw. My pools are using rep size = 2, so the real storage capacity is 40Tb but I see in pgmap a total of 80Tb available and also the cephfs mounted on a client reports 80Tb available too I would expect to see somewhere a "40Tb available" Is this behavior correct? Thanks pool 0 'data' rep size 2 crush_ruleset 0 object_hash rjenkins pg_num 2880 pgp_num 2880 last_change 1 owner 0 crash_replay_interval 45 pgmap v796: 8640 pgs: 8640 active+clean; 8913 bytes data, 1770 MB used, 81489 GB / 81491 GB avail; 229B/s wr, 0op/s root@client1 ~ $ df -h Filesystem Size Used Avail Use% Mounted on 192.168.21.12:6789:/ 80T 1,8G 80T 1% /mnt/ceph -- Marco Aroldi _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com NOTICE: Protect the information in this message in accordance with the company's security policies. If you received this message in error, immediately notify the sender and destroy all copies. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |