How to send alerts to DBA in RAC?

Question

Hi All,
I have a 2-node 10gR2 RAC. How can we configure/setup to send alerts to DBA's when any tablespaces reached 99% or if there any problem?
Can anybody please help me?
Thanks,
Praveen.

Answer 1

You can run this sql to get the tablespace which is greater then and equal to 98%
set pages 0
set serveroutput on
column tablespace_name format a30
column free_space format 9999999999
column used_space format 9999999999
column percent_used format 9999999999
SELECT Total.name "TABLESPACE_NAME",
Free_space,
(total_space-Free_space) Used_space,
total_space,
round(((Total_space-Free_space)/total_space)*100,2) percent_used
FROM
(select tablespace_name, sum(bytes/1024/1024) Free_Space
from sys.dba_free_space
group by tablespace_name
) Free,
(select b.name, sum(bytes/1024/1024) TOTAL_SPACE
from sys.v_$datafile a, sys.v_$tablespace B
where a.ts# = b.ts#
group by b.name
) Total
WHERE Free.Tablespace_name = Total.name
and round(((Total_space-Free_space)/total_space)*100,2) >= 98
order by round(((Total_space-Free_space)/total_space)*100,2) desc;