[ceph-users] Unable to find further optimization, or distribution is already perfect

Hi We're having problems getting our erasure coded ec82pool to upmap balance. "ceph version 14.2.11 (f7fdb2f52131f54b891a2ec99d8205561242cdaf) nautilus (stable)": 554 The pool consists of 20 nodes in 10 racks, each rack containing a pair of nodes 1@45*8TB drives and 1@10*16TB. https://pastebin.com/YLwu8VVi The problem is the 8TB drives are roughly 62-74% full, while the 16TB drives are 84-87% full. https://pastebin.com/j7Dx883i Neither osdmaptool or reweight-by-utilization are able to improve the distribution . There's an osdmap ftp://ftp.mrc-lmb.cam.ac.uk/pub/toby/osdmap.2135441. Any thoughts/pointers much appreciated. Cheers Toby -- Toby Darling, Scientific Computing (2N249) MRC Laboratory of Molecular Biology