Operationsmanager database is consuming lot of space

Question

Hi All,
I have a issue, My operations manager database is of 40GB and out of which 19 GB was always free.
From the past 1 - 2 weeks my database is occupying lot of space and currently i have only 9GB free.
When i ran a SQL query to pull what data  of what is consuming lot of space below is the report.
SQL Query what i used:
SELECT so.name, 
8 * Sum(CASE WHEN si.indid IN (0, 1) THEN si.reserved END) AS data_kb, 
Coalesce(8 * Sum(CASE WHEN si.indid NOT IN (0, 1, 255) THEN si.reserved END), 0) AS index_kb, 
Coalesce(8 * Sum(CASE WHEN si.indid IN (255) THEN si.reserved END), 0) AS blob_kb 
FROM dbo.sysobjects AS so JOIN dbo.sysindexes AS si ON (si.id = so.id) 
WHERE 'U' = so.type GROUP BY so.name  ORDER BY data_kb DESC
Output:
Last 5 days back the report (When the space came to 12GB)
name
data_kb
index_kb
StateChangeEvent
7347832
753376
PerformanceSource
4001200
1783192
PerformanceData_40
2310000
671704
PerformanceData_38
2240256
648800
PerformanceData_42
2063936
596704
AlertHistory
1412752
177984
PerformanceData_36
1390320
406616
Alert
1369984
162984
PerformanceData_44
764976
224600
RecursiveMembership
482152
176856
Event_40
420400
5912
Event_42
313984
4320
Event_36
290688
4000
Event_38
289600
3808
Event_34
252976
3352
In last 3 days the new report (Currently when the space came to 9GB)
name
data_kb
index_kb
blob_kb
StateChangeEvent
7417272
764896
0
PerformanceSource
4009712
1786904
0
PerformanceData_46
3626432
1042144
0
PerformanceData_40
2310000
671704
0
PerformanceData_38
2240256
648800
0
PerformanceData_42
2063936
596704
0
PerformanceData_44
1873840
548888
0
AlertHistory
1468880
182208
0
Alert
1399576
152832
0
Event_46
526832
6936
0
RecursiveMembership
482728
177240
0
Event_40
420400
5912
0
Event_42
313984
4320
0
Event_44
306608
4184
0
Event_36
290688
4000
0
My Current grooming settings for Operationsmanager DB are as below.
Can any one help me in how do i reduce this space occupation please ?
Gautam.75801

Answer 1

1) You may refer to the following SQL statement to find out the lare table query of operations Manager Database and Operations manager DataWarehouse.
SELECT TOP 1000
a2.name AS [tablename], (a1.reserved + ISNULL(a4.reserved,0))* 8 AS reserved,
a1.rows as row_count, a1.data * 8 AS data,
(CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 AS index_size,
(CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 AS unused,
(row_number() over(order by (a1.reserved + ISNULL(a4.reserved,0)) desc))%2 as l1,
a3.name AS [schemaname]
FROM (SELECT ps.object_id, SUM (CASE WHEN (ps.index_id < 2) THEN row_count ELSE 0 END) AS [rows],
SUM (ps.reserved_page_count) AS reserved,
SUM (CASE WHEN (ps.index_id < 2) THEN (ps.in_row_data_page_count + ps.lob_used_page_count + ps.row_overflow_used_page_count)
ELSE (ps.lob_used_page_count + ps.row_overflow_used_page_count) END ) AS data,
SUM (ps.used_page_count) AS used
FROM sys.dm_db_partition_stats ps
GROUP BY ps.object_id) AS a1
LEFT OUTER JOIN (SELECT it.parent_id,
SUM(ps.reserved_page_count) AS reserved,
SUM(ps.used_page_count) AS used
FROM sys.dm_db_partition_stats ps
INNER JOIN sys.internal_tables it ON (it.object_id = ps.object_id)
WHERE it.internal_type IN (202,204)
GROUP BY it.parent_id) AS a4 ON (a4.parent_id = a1.object_id)
INNER JOIN sys.all_objects a2  ON ( a1.object_id = a2.object_id )
INNER JOIN sys.schemas a3 ON (a2.schema_id = a3.schema_id)
WHERE a2.type <> N'S' and a2.type <> N'IT'  
2) Moreover, your query return that the suddndly increase of DB siza came from performance data and you may use the following queryto find out which rule generated a hugh mount of performance data.
select r.rulename, count(*) from performancedataallview pv
inner join performancesource ps on pv.performancesourceinternalid=ps.performancesourceinternalid
inner join rules r on r.ruleid=ps.ruleid
group by r.rulename
order by count(*) desc
http://blogs.technet.com/b/kevinholman/archive/2007/10/18/useful-operations-manager-2007-sql-queries.aspx
Roger