Physical storage Checks

Question

Can any body forward me the PL/SQL commands to check Physical storage.
I want to check how much physical storage we have free,
Secondly , i want to check other storage like tablespace & any other storage we should keep checking for our db maintenance...
Neep suggestions

Answer 1

This is a SQL plus script that can be modified to be used on PLSQL, the script returns tablespace space used,free.
-- tablespace_size.sql
-- This SQL Plus script lists tablespace space used
-- Parameter:
-- &1: Display order by:
--      1:tablespace name
--     2:total mbytes
--     3:used Mb
--     4:free mb
--     5:% used
--     6:% free
SET lines 300
SET feedback off
SET verify off
SET pages 40
COLUMN pct_used format 999.9 heading "%|Used"
COLUMN pct_free format 999.9 heading "%|Free"
COLUMN name format a16 heading "Tablespace Name"
COLUMN mbytes format 999,999,999 heading "Total|MB"
COLUMN used format 999,999,999 heading "Used|MB"
COLUMN free format 999,999,999 heading "Free|MB"
COLUMN largest format 999,999,999 heading "Largest"
BREAK on report
COMPUTE sum of mbytes on report
COMPUTE sum of free on report
COMPUTE sum of used on report
PROMPT Order by:
PROMPT     1:tablespace name
PROMPT     2:total mbytes
PROMPT     3:used Mb
PROMPT 4:free mb
PROMPT     5:% used
PROMPT 6:% free
SELECT NVL (b.tablespace_name, NVL (a.tablespace_name, 'UNKOWN')) NAME,
mbytes_alloc mbytes, mbytes_alloc - NVL (mbytes_free, 0) used,
NVL (mbytes_free, 0) free,
((mbytes_alloc - NVL (mbytes_free, 0)) / mbytes_alloc)
* 100 pct_used,
100
- (((mbytes_alloc - NVL (mbytes_free, 0)) / mbytes_alloc) * 100)
pct_free
FROM (SELECT SUM (BYTES) / 1024 / 1024 mbytes_free, tablespace_name
FROM SYS.dba_free_space
GROUP BY tablespace_name) a,
(SELECT SUM (BYTES) / 1024 / 1024 mbytes_alloc, tablespace_name
FROM SYS.dba_data_files
GROUP BY tablespace_name) b
WHERE a.tablespace_name(+) = b.tablespace_name
UNION ALL
SELECT f.tablespace_name,
SUM (ROUND ((f.bytes_free + f.bytes_used) / 1024 / 1024, 2)
) "total MB",
SUM (ROUND (NVL (p.bytes_used, 0) / 1024 / 1024, 2)) "Used MB",
SUM (ROUND ( ((f.bytes_free + f.bytes_used) - NVL (p.bytes_used, 0)
/ 1024
/ 1024,
2
) "Free MB",
(SUM (ROUND (NVL (p.bytes_used, 0) / 1024 / 1024, 2)) * 100)
/ (SUM (ROUND ((f.bytes_free + f.bytes_used) / 1024 / 1024, 2))),
100
- (SUM (ROUND (NVL (p.bytes_used, 0) / 1024 / 1024, 2)) * 100)
/ (SUM (ROUND ((f.bytes_free + f.bytes_used) / 1024 / 1024, 2)))
FROM SYS.v_$temp_space_header f,
dba_temp_files d,
SYS.v_$temp_extent_pool p
WHERE f.tablespace_name(+) = d.tablespace_name AND f.file_id(+) = d.file_id
AND p.file_id(+) = d.file_id
GROUP BY f.tablespace_name
ORDER BY &1
/