Hi,Cephers: Recently,I face a problem of full.and I have using reweight to adjust it. But now I want to increase pgnum before I can add new nodes into the cluster. current pg_num is 2048,and total OSD is 69.I want to increase to 4096. so what's the recommended steps:one-time increase derectly to 4096 or increase it slowly,eg.increase 200 each time. ceph version is:0.67.8.and I use rbd pool only. the form of osdid,osd pg_um,osd reweight and osd used is below: dumped all in format plain OSD weight pgnum used 0 0.89 106 83% 1 1 102 73% 2 0.9 104 87% 3 0.9192 107 80% 5 0.89 106 85% 6 0.9271 108 82% 7 1 112 77% 8 0.9477 113 82% 9 1 112 78% 10 0.9177 109 79% 11 1 108 76% 12 0.9266 109 84% 13 1 105 75% 14 0.846 103 80% 15 0.91 109 80% 16 1 99 68% 17 1 108 79% 18 1 109 77% 19 0.8506 109 84% 20 0.9504 111 79% 21 1 95 71% 22 0.9178 106 76% 23 1 108 76% 24 0.9274 118 82% 25 0.923 117 86% 26 1 107 76% 27 1 111 80% 28 0.9254 101 80% 29 0.9445 104 82% 30 1 115 81% 31 0.9285 105 75% 32 0.7823 105 81% 33 0.9002 111 81% 34 0.8024 106 79% 35 1 100 71% 36 1 117 81% 37 0.7949 106 79% 38 0.9356 108 78% 39 0.866 106 76% 40 0.8322 105 76% 41 0.9297 97 81% 42 1 97 68% 43 0.8393 115 81% 44 0.9355 108 78% 45 0.8429 115 84% 46 1 100 71% 47 1 105 73% 48 0.9476 109 80% 49 1 117 82% 50 0.8642 100 74% 51 1 101 76% 56 1 104 77% 57 1 102 70% 62 1 106 79% 63 0.9332 99 82% 68 1 103 76% 69 1 100 71% 74 1 105 77% 75 1 104 80% 80 1 101 73% 81 1 112 78% 86 0.866 104 76% 87 1 97 70% 92 1 104 79% 93 0.9464 102 75% 98 0.9082 113 80% 99 1 108 77% 104 1 107 79% 105 1 109 77% _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com