In this post, I am sharing two different scripts to check the full size of Greenplum DCA.
To monitor the disk space is a ubiquitous task of DBA. DBA can use below script and can automate the report on disk size notification/alert.

There are different options to check the disk size of the server; below I prepared two queries using gpperfmon database and gp_toolkit schema.

Use gpperfmon Database:

select
	hostname
	,filesystem
	,round(total_bytes/power(1024,4)::numeric,2) as TotalSize_inTB
	,round(bytes_used/power(1024,4)::numeric,2) as UsedSize_inTB
	,round(bytes_available/power(1024,4)::numeric,2) as AvailableSize_inTB
from diskspace_now
where filesystem in ('/data1','/data2')
ORDER BY 4 DESC

Use gp_toolkit Schema:

select
	distinct dfhostname
	,dfdevice
	,dfspace
from gp_toolkit.gp_disk_free