Document "ceph df detail"
The output of "ceph df detail" has a lot of useful information including per pool stats. Let's document whatever is not already documented.
--- RAW STORAGE --- CLASS SIZE AVAIL USED RAW USED %RAW USED ssd 303 GiB 300 GiB 3.0 GiB 3.0 GiB 0.99 TOTAL 303 GiB 300 GiB 3.0 GiB 3.0 GiB 0.99 --- POOLS --- POOL ID PGS STORED (DATA) (OMAP) OBJECTS USED (DATA) (OMAP) %USED MAX AVAIL QUOTA OBJECTS QUOTA BYTES DIRTY USED COMPR UNDER COMPR device_health_metrics 1 1 0 B 0 B 0 B 1 0 B 0 B 0 B 0 99 GiB N/A N/A 1 0 B 0 B
https://docs.ceph.com/en/latest/man/8/ceph/#df -- man page location
https://docs.ceph.com/en/latest/rados/operations/monitoring/#checking-a-cluster-s-usage-stats -- one of the locations where "ceph df" information appears in the docs.
NAME is now POOL.
PGS is not in the docs.
(DATA) is not in the docs.
(OMAP) is not in the docs.
There are multiple occurrences of OBJECTS in the interface, but only one explanation of the meaning of OBJECTS in the documentation.
BYTES is not in the docs.
COMPR is not in the docs.