wiki:drmsAscertainSpace
Last modified 5 years ago Last modified on 03/25/14 12:49:01

Ascertaining how much disk space a series uses

The first thing to do is to go into the SUMS database and build a temporary table (lasts only for the current session) with storage information :

create temporary table space_used as ( select sum(bytes) as bytes, owning_series from sum_main group by owning_series );

The resulting table looks something like this :

     bytes      | owning_series
----------------+---------------
  2293889467054 | hmi.m_45s
  2551641062389 | hmi.v_45s
  2604818885633 | hmi.s_720s
 34888439851665 | aia.lev1

The creation of this table can take a while.

Then we need to do a sum through that table of storage for series name(s) that match what we want (and convert to GB) - for instance, for data in the hmi series :

select sum(bytes)/1024/1024/1024 as HMI_GB from space_used where owning_series like 'hmi%';
       hmi_gb
--------------------
 51440.777539771982
(1 row)

And for data in the AIA series :

select sum(bytes)/1024/1024/1024 as AIA_GB from space_used where owning_series like 'aia%';
       aia_gb
--------------------
 47510.095782309771
(1 row)