07-13-2015 11:04 PM
Dear All,
I got the warnning about SQL tables have one or more indexes with a fragmentation level of more than 30%. What should I do? To rebuild index in SQL server? Is there any maintenace task I would need to do on SQL Server?
Thanks
Best regards,
Elroy
Solved! Go to Solution.
07-22-2015 08:28 AM
in some extreme cases you might have to stop the EV services but it shouldnt be necessary on an ongoing basis. i dont know how you're going about rebuilding the index but if you're just using the builtin wizard, you might also want to look into other options or consult a DBA.
07-13-2015 11:08 PM
generally speaking, this article covers standard SQL maintenance procedures.
you can leave out the shrink operation.
07-20-2015 06:55 PM
Dear Sir,
Can I have more specific instruction for the SQL maintenance? Should I stop all the enterprise vault services and run a SQL maintenance job to rebuild index? Thanks
Best Regards,
Elroy
07-20-2015 09:59 PM
it's not necessary to stop the services but i suppose you could put EV in backup mode. if you dont do that, at least make sure your archiving window doesnt overlap with your maintenance job
07-20-2015 10:27 PM
Noted. I have tried to rebuild the index. However, the fragmentation is still high after rebuilding index. Would you please advise? Thanks a lot
Best Regards,
Elroy
07-21-2015 08:35 AM
how do you know that the fragmentation is still high?
07-22-2015 08:24 AM
Dear Sir,
It is because I still got the high fragmentation warning and also I have browsed to the SQL table and checked a few tables of the extend fragmentation is over 50%
Thanks
Best Regards,
elroy
07-22-2015 08:28 AM
in some extreme cases you might have to stop the EV services but it shouldnt be necessary on an ongoing basis. i dont know how you're going about rebuilding the index but if you're just using the builtin wizard, you might also want to look into other options or consult a DBA.
07-22-2015 11:41 PM
I have stopped the EV service to run the index rebuild. I have createda maintenance plan in SQL to do reuild index task and update statistics. Would you please provide any clues for this warning? Thanks
Best Regards,
Elroy
07-23-2015 10:17 AM
i've seen DBAs use this one https://ola.hallengren.com/
05-22-2017 11:19 PM
Run below query on SQL for the fragmented databse
USE <Vault store group name>
SET NOCOUNT ON;
DECLARE @objectid int;
DECLARE @indexid int;
DECLARE @partitioncount bigint;
DECLARE @schemaname nvarchar(130);
DECLARE @objectname nvarchar(130);
DECLARE @indexname nvarchar(130);
DECLARE @partitionnum bigint;
DECLARE @partitions bigint;
DECLARE @frag float;
DECLARE @command nvarchar(4000);
-- Conditionally select tables and indexes from the sys.dm_db_index_physical_stats function
-- and convert object and index IDs to names.
SELECT
object_id AS objectid,
index_id AS indexid,
partition_number AS partitionnum,
avg_fragmentation_in_percent AS frag
INTO #work_to_do
FROM sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL , NULL, 'LIMITED')
WHERE avg_fragmentation_in_percent > 5.0 AND index_id > 0;
-- Declare the cursor for the list of partitions to be processed.
DECLARE partitions CURSOR FOR
SELECT * FROM #work_to_do;
-- Open the cursor.
OPEN partitions;
-- Loop through the partitions.
WHILE (1=1)
BEGIN;
FETCH NEXT
FROM partitions
INTO @objectid, @indexid, @partitionnum, @frag;
IF @@FETCH_STATUS < 0 BREAK;
SELECT @objectname = QUOTENAME(o.name), @schemaname = QUOTENAME(s.name)
FROM sys.objects AS o
JOIN sys.schemas as s ON s.schema_id = o.schema_id
WHERE o.object_id = @objectid;
SELECT @indexname = QUOTENAME(name)
FROM sys.indexes
WHERE object_id = @objectid AND index_id = @indexid;
SELECT @partitioncount = count (*)
FROM sys.partitions
WHERE object_id = @objectid AND index_id = @indexid;
-- 10 is an arbitrary decision point at which to switch between reorganizing and rebuilding.
IF @frag < 10.0
SET @command = N'ALTER INDEX ' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REORGANIZE';
IF @frag >= 10.0
SET @command = N'ALTER INDEX ' + @indexname + N' ON ' + @schemaname + N'.' + @objectname + N' REBUILD';
IF @partitioncount > 1
SET @command = @command + N' PARTITION=' + CAST(@partitionnum AS nvarchar(10));
EXEC (@command);
PRINT N'Executed: ' + @command;
END;
-- Close and deallocate the cursor.
CLOSE partitions;
DEALLOCATE partitions;
-- Drop the temporary table.
DROP TABLE #work_to_do;
GO