Let's see how it works

ceph_space.py

• TXT output (any of the three options print the same output)

  $ python ceph_space.py "Ceph Cluster"
  $ python ceph_space.py --output txt "Ceph Cluster"
  $ python ceph_space.py --output txt --ratio 0.2 "Ceph Cluster"

    Cluster codename: Ceph Cluster
    Cluster ID: 85289369-1173-44b9-8a4c-ab5c1b50270f
    Cluster mon to connect: stor01.ceph.local
    Cluster Statistics
    	 	Total: 10.7TB
    	 	Reserved: 2.1TB
    	 	Usable (before warning): 8.5TB
    	 	Used: 2.1TB
    	 	
    	 	Total Available: 6.5TB
    	 	Percentage Available: 75%
  

• CSV print

  $ python ceph_space.py --output csv --ratio 0.2 "Ceph Cluster"

    Cluster Name,Cluster ID,Cluster MON,Total,Reserved,Usable,Used,Available,Percentage Available
    Ceph Cluster,85289369-1173-44b9-8a4c-ab5c1b50270f,stor01.ceph.local,10.7TB,2.1TB,8.5TB,2.1TB,6.5TB,75%
  

• CSV printing and leaving a CSV file named cluster_stats (change with --file) in CWD

  $ python ceph_space.py --output csv --ratio 0.2 --file cluster_stats "Ceph Cluster"

    Cluster Name,Cluster ID,Cluster MON,Total,Reserved,Usable,Used,Available,Percentage Available
    Ceph Cluster,85289369-1173-44b9-8a4c-ab5c1b50270f,stor01.ceph.local,10.7TB,2.1TB,8.5TB,2.1TB,6.5TB,75%
  

  $ cat cluster_stats.csv

    Cluster Name,Cluster ID,Cluster MON,Total,Reserved,Usable,Used,Available,Percentage Available
    Ceph Cluster,85289369-1173-44b9-8a4c-ab5c1b50270f,stor01.ceph.local,10.7TB,2.1TB,8.5TB,2.1TB,6.5TB,75%
  

ceph_provisioned_space.py

• TXT output, no params (yet)

  $ python ceph_provisioned_space.py

    ===============
    Provisioned space (all pools, not cephfs):  16.1TB
    ===============