This can be a good start http://ceph.com/pgcalc/ -----Original Message----- From: ceph-devel-owner@xxxxxxxxxxxxxxx [mailto:ceph-devel-owner@xxxxxxxxxxxxxxx] On Behalf Of Butkeev Stas Sent: Monday, July 06, 2015 1:06 PM To: ceph-devel@xxxxxxxxxxxxxxx; ceph-qa@xxxxxxxx; ceph-maintainers@xxxxxxxx Subject: Number of PG per OSD in cluster Hello everbody Could you help me with one question about number of pg in cluster. I have next cluster [10:26]:[root@se087 ~]# ceph osd tree ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY -1 183.00101 root default -2 183.00101 region RU -3 91.50099 datacenter ru-msk-comp1p -9 22.87500 host sf016 48 1.90599 osd.48 up 1.00000 1.00000 49 1.90599 osd.49 up 1.00000 1.00000 50 1.90599 osd.50 up 1.00000 1.00000 51 1.90599 osd.51 up 1.00000 1.00000 52 1.90599 osd.52 up 1.00000 1.00000 53 1.90599 osd.53 up 1.00000 1.00000 54 1.90599 osd.54 up 1.00000 1.00000 55 1.90599 osd.55 up 1.00000 1.00000 56 1.90599 osd.56 up 1.00000 1.00000 57 1.90599 osd.57 up 1.00000 1.00000 58 1.90599 osd.58 up 1.00000 1.00000 59 1.90599 osd.59 up 1.00000 1.00000 -10 22.87500 host sf049 60 1.90599 osd.60 up 1.00000 1.00000 61 1.90599 osd.61 up 1.00000 1.00000 62 1.90599 osd.62 up 1.00000 1.00000 63 1.90599 osd.63 up 1.00000 1.00000 64 1.90599 osd.64 up 1.00000 1.00000 65 1.90599 osd.65 up 1.00000 1.00000 66 1.90599 osd.66 up 1.00000 1.00000 67 1.90599 osd.67 up 1.00000 1.00000 68 1.90599 osd.68 up 1.00000 1.00000 69 1.90599 osd.69 up 1.00000 1.00000 70 1.90599 osd.70 up 1.00000 1.00000 71 1.90599 osd.71 up 1.00000 1.00000 -11 22.87500 host sf056 72 1.90599 osd.72 up 1.00000 1.00000 73 1.90599 osd.73 up 1.00000 1.00000 74 1.90599 osd.74 up 1.00000 1.00000 75 1.90599 osd.75 up 1.00000 1.00000 76 1.90599 osd.76 up 1.00000 1.00000 77 1.90599 osd.77 up 1.00000 1.00000 78 1.90599 osd.78 up 1.00000 1.00000 79 1.90599 osd.79 up 1.00000 1.00000 80 1.90599 osd.80 up 1.00000 1.00000 81 1.90599 osd.81 up 1.00000 1.00000 82 1.90599 osd.82 up 1.00000 1.00000 83 1.90599 osd.83 up 1.00000 1.00000 -12 22.87500 host sf068 84 1.90599 osd.84 up 1.00000 1.00000 85 1.90599 osd.85 up 1.00000 1.00000 86 1.90599 osd.86 up 1.00000 1.00000 87 1.90599 osd.87 up 1.00000 1.00000 88 1.90599 osd.88 up 1.00000 1.00000 89 1.90599 osd.89 up 1.00000 1.00000 90 1.90599 osd.90 up 1.00000 1.00000 91 1.90599 osd.91 up 1.00000 1.00000 92 1.90599 osd.92 up 1.00000 1.00000 93 1.90599 osd.93 up 1.00000 1.00000 94 1.90599 osd.94 up 1.00000 1.00000 95 1.90599 osd.95 up 1.00000 1.00000 -4 91.50099 datacenter ru-msk-vol51 -5 22.87500 host se087 0 1.90599 osd.0 up 1.00000 1.00000 1 1.90599 osd.1 up 1.00000 1.00000 2 1.90599 osd.2 up 1.00000 1.00000 3 1.90599 osd.3 up 1.00000 1.00000 4 1.90599 osd.4 up 1.00000 1.00000 5 1.90599 osd.5 up 1.00000 1.00000 6 1.90599 osd.6 up 1.00000 1.00000 7 1.90599 osd.7 up 1.00000 1.00000 8 1.90599 osd.8 up 1.00000 1.00000 9 1.90599 osd.9 up 1.00000 1.00000 10 1.90599 osd.10 up 1.00000 1.00000 11 1.90599 osd.11 up 1.00000 1.00000 -6 22.87500 host se088 12 1.90599 osd.12 up 1.00000 1.00000 13 1.90599 osd.13 up 1.00000 1.00000 14 1.90599 osd.14 up 1.00000 1.00000 15 1.90599 osd.15 up 1.00000 1.00000 16 1.90599 osd.16 up 1.00000 1.00000 17 1.90599 osd.17 up 1.00000 1.00000 18 1.90599 osd.18 up 1.00000 1.00000 19 1.90599 osd.19 up 1.00000 1.00000 20 1.90599 osd.20 up 1.00000 1.00000 21 1.90599 osd.21 up 1.00000 1.00000 22 1.90599 osd.22 up 1.00000 1.00000 23 1.90599 osd.23 up 1.00000 1.00000 -7 22.87500 host se089 24 1.90599 osd.24 up 1.00000 1.00000 25 1.90599 osd.25 up 1.00000 1.00000 26 1.90599 osd.26 up 1.00000 1.00000 27 1.90599 osd.27 up 1.00000 1.00000 28 1.90599 osd.28 up 1.00000 1.00000 29 1.90599 osd.29 up 1.00000 1.00000 30 1.90599 osd.30 up 1.00000 1.00000 31 1.90599 osd.31 up 1.00000 1.00000 32 1.90599 osd.32 up 1.00000 1.00000 33 1.90599 osd.33 up 1.00000 1.00000 34 1.90599 osd.34 up 1.00000 1.00000 35 1.90599 osd.35 up 1.00000 1.00000 -8 22.87500 host se090 36 1.90599 osd.36 up 1.00000 1.00000 37 1.90599 osd.37 up 1.00000 1.00000 38 1.90599 osd.38 up 1.00000 1.00000 39 1.90599 osd.39 up 1.00000 1.00000 40 1.90599 osd.40 up 1.00000 1.00000 41 1.90599 osd.41 up 1.00000 1.00000 42 1.90599 osd.42 up 1.00000 1.00000 43 1.90599 osd.43 up 1.00000 1.00000 44 1.90599 osd.44 up 1.00000 1.00000 45 1.90599 osd.45 up 1.00000 1.00000 46 1.90599 osd.46 up 1.00000 1.00000 47 1.90599 osd.47 up 1.00000 1.00000 total OSD 96. I want use ceph + rgw and now I have 10 pools. How I can calculate number of pg per OSD with 10 pools? Thanks in advance for the help. -- Best Regards, Stanislav Butkeev -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html ________________________________ PLEASE NOTE: The information contained in this electronic mail message is intended only for the use of the designated recipient(s) named above. If the reader of this message is not the intended recipient, you are hereby notified that you have received this message in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify the sender by telephone or e-mail (as shown above) immediately and destroy any and all copies of this message in your possession (whether hard copies or electronically stored copies). -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
