Question of space

Hi I'm using the 11.2.0.3.0 Oracle version.

I have check the trend of the use of space for my database (it is a node three CARS), and I use performans seen as dba_hist_tbspc_space_usage and dba_hist_datafile so that, as in the following query. Recently, we had a space problem of emergency with the ASM disk group is + DATA1 disc obtained filledup ~ 90% that end up in a situation of prirority-1, I'm seeing current disk in view space v$ asm_diskgroup.so need expert advice, is it all view historical performance in which we can get the information of historical space for the ASM disk for analysis group?


 

WITH ts_info as (
select dbid, ts#, tsname, max(block_size) block_size
from dba_hist_datafile where dbid = 1234 
group by dbid, ts#, tsname),
-- Get the maximum snaphsot id for each day from dba_hist_snapshot
snap_info as (
select dbid,to_char(end_interval_time,'MON-DD hh24') dd, max(s.snap_id) snap_id
from dba_hist_snapshot s where s.dbid = 1234 
group by dbid,to_char(end_interval_time,'MON-DD hh24'))
-- Sum up the sizes of all the tablespaces for the last snapshot of each day
select s.dd, s.dbid, sum(tablespace_size*f.block_size)/1024/1024/1024 allocated, sum(TABLESPACE_USEDSIZE*f.block_size)/1024/1024/1024 used 
from dba_hist_tbspc_space_usage sp,
ts_info f,
snap_info s
where s.dbid = sp.dbid and sp.dbid=1234 
and s.snap_id = sp.snap_id
and sp.dbid = f.dbid
and sp.tablespace_id = f.ts#
group by s.dd, s.dbid
order by s.dd

.

If there is such a vision, see the view DICT (which has been already available in 1987) will show its existence.

SELECT *.

DICT

WHERE table_name like '% % ASM '.

/

will provide answers.

-----------

Sybrand Bakker

Senior Oracle DBA

Tags: Database

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