Releases, Tickets, Testing, Board, ...
Upgrades, capacity changes, rebalancing, ...
ceph/flax: 2nd host, first 6+1 disks formatted to bluestore, now backfilling
ceph-scripts: avoid usage of `ceph-volume lvm zap` on `ceph-disk` formatted disks, because they start the osds and then they try to delete them. (i use ceph-disk zap now, it may need improvement because it creates a unusable gpt partition table)
Didn't see any problems with restarting hosts with reformatted disks.
They booted normally and started all processes.
Ops, Use-cases (backup, DB), ...
Herve (by Dan)
Running an HPC application (RegCM, Regional Climate Model - https://gforge.ictp.it/gf/project/regcm/) on CEPH /bescratch (kernel mounted), on different # procs.
Strange "patterns": investigation with IOR in different ways of writing (MPI-IO, HDF5, NetCDF, etc)