Script To Find Redolog Switch History And Find Archivelog Size For Each Instances
This script will list the below items from each Instances in the RAC Database. The same can be used for Standalone (Non-RAC) Database as well.
(1) Report the redo log switches on hourly basis from the all the instances on RAC Database
(2) Report the size of the archivelogs generated on daily basis from all the instances on RAC Database
Script:
set linesize 200 pagesize 1000
column day format a3
column total format 9999
column h00 format 999
column h01 format 999
column h02 format 999
column h03 format 999
column h04 format 999
column h04 format 999
column h05 format 999
column h06 format 999
column h07 format 999
column h08 format 999
column h09 format 999
column h10 format 999
column h11 format 999
column h12 format 999
column h13 format 999
column h14 format 999
column h15 format 999
column h16 format 999
column h17 format 999
column h18 format 999
column h19 format 999
column h20 format 999
column h21 format 999
column h22 format 999
column h23 format 999
column h24 format 999
break on report
compute max of "total" on report
compute max of "h00" on report
compute max of "h01" on report
compute max of "h02" on report
compute max of "h03" on report
compute max of "h04" on report
compute max of "h05" on report
compute max of "h06" on report
compute max of "h07" on report
compute max of "h08" on report
compute max of "h09" on report
compute max of "h10" on report
compute max of "h11" on report
compute max of "h12" on report
compute max of "h13" on report
compute max of "h14" on report
compute max of "h15" on report
compute max of "h16" on report
compute max of "h17" on report
compute max of "h18" on report
compute max of "h19" on report
compute max of "h20" on report
compute max of "h21" on report
compute max of "h22" on report
compute max of "h23" on report
compute sum of NUM on report
compute sum of GB on report
compute sum of MB on report
compute sum of KB on report
REM Script to Report the Redo Log Switch History
alter session set nls_date_format='DD MON YYYY';
select thread#, trunc(completion_time) as "date", to_char(completion_time,'Dy') as "Day", count(1) as "total",
sum(decode(to_char(completion_time,'HH24'),'00',1,0)) as "h00",
sum(decode(to_char(completion_time,'HH24'),'01',1,0)) as "h01",
sum(decode(to_char(completion_time,'HH24'),'02',1,0)) as "h02",
sum(decode(to_char(completion_time,'HH24'),'03',1,0)) as "h03",
sum(decode(to_char(completion_time,'HH24'),'04',1,0)) as "h04",
sum(decode(to_char(completion_time,'HH24'),'05',1,0)) as "h05",
sum(decode(to_char(completion_time,'HH24'),'06',1,0)) as "h06",
sum(decode(to_char(completion_time,'HH24'),'07',1,0)) as "h07",
sum(decode(to_char(completion_time,'HH24'),'08',1,0)) as "h08",
sum(decode(to_char(completion_time,'HH24'),'09',1,0)) as "h09",
sum(decode(to_char(completion_time,'HH24'),'10',1,0)) as "h10",
sum(decode(to_char(completion_time,'HH24'),'11',1,0)) as "h11",
sum(decode(to_char(completion_time,'HH24'),'12',1,0)) as "h12",
sum(decode(to_char(completion_time,'HH24'),'13',1,0)) as "h13",
sum(decode(to_char(completion_time,'HH24'),'14',1,0)) as "h14",
sum(decode(to_char(completion_time,'HH24'),'15',1,0)) as "h15",
sum(decode(to_char(completion_time,'HH24'),'16',1,0)) as "h16",
sum(decode(to_char(completion_time,'HH24'),'17',1,0)) as "h17",
sum(decode(to_char(completion_time,'HH24'),'18',1,0)) as "h18",
sum(decode(to_char(completion_time,'HH24'),'19',1,0)) as "h19",
sum(decode(to_char(completion_time,'HH24'),'20',1,0)) as "h20",
sum(decode(to_char(completion_time,'HH24'),'21',1,0)) as "h21",
sum(decode(to_char(completion_time,'HH24'),'22',1,0)) as "h22",
sum(decode(to_char(completion_time,'HH24'),'23',1,0)) as "h23"
from
v$archived_log
where first_time > trunc(sysdate-10)
and dest_id = (select dest_id from V$ARCHIVE_DEST_STATUS where status='VALID' and type='LOCAL')
group by thread#, trunc(completion_time), to_char(completion_time, 'Dy') order by 2,1;
REM Script to calculate the archive log size generated per day for each Instances.
select THREAD#, trunc(completion_time) as "DATE"
, count(1) num
, trunc(sum(blocks*block_size)/1024/1024/1024) as GB
, trunc(sum(blocks*block_size)/1024/1024) as MB
, sum(blocks*block_size)/1024 as KB
from v$archived_log
where first_time > trunc(sysdate-10)
and dest_id = (select dest_id from V$ARCHIVE_DEST_STATUS where status='VALID' and type='LOCAL')
group by thread#, trunc(completion_time)
order by 2,1
;
Output:
THREAD# date Day total h00 h01 h02 h03 h04 h05 h06 h07 h08 h09 h10 h11 h12 h13 h14 h15 h16 h17 h18 h19 h20 h21 h22 h23
---------- ----------- --- ----- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
1 17 MAR 2018 Sat 47 0 0 0 0 0 0 0 0 1 0 44 1 0 0 0 0 0 0 0 0 0 1 0 0
2 17 MAR 2018 Sat 133 0 0 0 0 1 0 0 0 0 2 128 1 0 0 0 0 0 0 1 0 0 0 0 0
1 18 MAR 2018 Sun 10 0 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2 18 MAR 2018 Sun 33 0 33 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
maximum 133 33 0 0 1 0 0 0 1 2 12 8 1 0 0 0 0 0 0 1 0 0 1 0
THREAD# DATE NUM GB MB KB
---------- ----------- ---------- ---------- ---------- ----------
1 17 MAR 2018 47 0 63 64939.5
2 17 MAR 2018 133 6 6403 6557111
1 18 MAR 2018 10 0 0 50
2 18 MAR 2018 33 1 1616 1654888.5
---------- ---------- ---------- ----------
sum 223 7 8082 8276989
| -- References Script To Find Redolog Switch History And Find Archivelog Size For Each Instances In RAC (Doc ID 2373477.1) | |
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