2026-03-12 20:23:15

vdh/archived_redo_stats.sql

@@ -0,0 +1,64 @@
+set echo off
+set pagesize 999
+set linesize 150
+
+/* 
+Average redo generation
+*/
+
+column start_day format a22
+column end_day format a22
+column days_between format 99
+column avg_archived_per_day format a13 heading avg_gen
+
+select to_char(min(dag), 'DD/MM/YYYY HH24:MI:SS') start_day, to_char(max(dag) + 1 - 1/(24*60*60), 'DD/MM/YYYY HH24:MI:SS') end_day,
+       (max(dag) - min(dag) + 1) days_between,
+       to_char(avg(gen_archived_size),'9G999G999D99') avg_archived_per_day
+from ( select trunc(completion_time) dag, sum(blocks * block_size)/1024/1024 gen_archived_size
+       from v$archived_log
+       where standby_dest = 'NO'
+             and months_between(trunc(sysdate), trunc(completion_time)) <= 1
+             and completion_time < trunc(sysdate)
+       group by trunc(completion_time)
+     );
+
+/* 
+archived redo over the (max) last 10 days
+*/
+column day_arch_size format 9G999G999D99
+column day_arch# format 999G999
+column graph format a15
+column dayname format a12
+column day format a12
+
+select to_char(day, 'DD/MM/YYYY') day, to_char(day,'DAY') dayname, day_arch_size, day_arch#, graph
+from ( select trunc(completion_time) day, sum(blocks * block_size)/1024/1024 day_arch_size, count(*) day_arch#,
+              rpad('*',floor(count(*)/10),'*') graph
+       from v$archived_log
+       where standby_dest = 'NO'
+             and completion_time >= trunc(sysdate) - 10
+       group by trunc(completion_time)
+       order by day
+     );
+     
+/*
+archived redo per hour over the (max) last 2 days
+*/
+column hour_arch_size format 99G999D99
+column hour_arch# format 9G999
+column graph format a15
+column dayname format a12
+column dayhour format a18
+break on dayname skip 1
+
+select to_char(dayhour,'DAY') dayname, to_char(dayhour, 'DD/MM/YYYY HH24:MI') dayhour, hour_arch_size, hour_arch#, graph
+from ( select trunc(completion_time, 'HH') dayhour, sum(blocks * block_size)/1024/1024 hour_arch_size, count(*) hour_arch#,
+              rpad('*',floor(count(*)/4),'*') graph
+       from v$archived_log
+       where standby_dest = 'NO'
+             and completion_time >= trunc(sysdate) - 2
+       group by trunc(completion_time, 'HH')
+       order by dayhour
+     );
+     
+clear breaks;