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SQl 2008 R2 - Maximum memory Expand / Collapse
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Posted Wednesday, July 17, 2013 1:05 AM
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Hi All

I am using sql 2008 R2 DB. As per the msdn document max memory that can be allocated to any istance is 1GB. In sql server property it showing 2147483647 MB which is default setting.

The machine on which this server is installed has 4 GB RAM. Will it make any differnce if i increase the sql server max memeory more than 1GB eg 2GB?

We have noticed that sometime memeory utilization on the server is more tah 90%. Please advice.

Regards
Post #1474398
Posted Wednesday, July 17, 2013 1:19 AM


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Krishna1 (7/17/2013)
As per the msdn document max memory that can be allocated to any istance is 1GB.

Can you post a link to the MSDN article where you have read this? Because it is not correct.
You can set the MAX MEMORY setting to a much higher value (see MSDN http://msdn.microsoft.com/en-us/library/ms178067(v=sql.105).aspx), depending on the version and the memory available on the machine. Keep in mind to always reseve some memory for the OS when setting the MAX MEMORY for SQL. For example when the machine has 4GB of RAM, only set 2 or 3GB as MAX MEMORY for SQL.


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Post #1474404
Posted Wednesday, July 17, 2013 1:30 AM
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folloing link shows maximum memory as 1GB http://msdn.microsoft.com/en-us/library/ms143685(v=sql.105).aspx
Post #1474411
Posted Wednesday, July 17, 2013 1:40 AM


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Krishna1 (7/17/2013)
folloing link shows maximum memory as 1GB http://msdn.microsoft.com/en-us/library/ms143685(v=sql.105).aspx

Aah, you didn't mention you are using the SQL Express version.
Yes, this version of SQL is limited to 1GB. You can probably set the MAX MEMORY to a higher setting, but it won't allocated more then 1GB.


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Post #1474418
Posted Wednesday, July 17, 2013 2:33 AM
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Thanks. But some times we notics that the server memeory utilization is more then 90%.
How can we check if its due to the SQL db or some other reason. (we chekced through task manager and it shows sql server is utlizing it)

Post #1474449
Posted Wednesday, July 17, 2013 3:36 AM


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Krishna1 (7/17/2013)
Thanks. But some times we notics that the server memeory utilization is more then 90%.
How can we check if its due to the SQL db or some other reason. (we chekced through task manager and it shows sql server is utlizing it)



What does the following return, when run against this server?

SELECT SERVERPROPERTY('productversion'), SERVERPROPERTY('productlevel'), SERVERPROPERTY('edition')

Post #1474471
Posted Wednesday, July 17, 2013 10:02 PM
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out put of the query is

10.50.2550.0 SP1 Express Edition with Advanced Services
Post #1474875
Posted Wednesday, July 17, 2013 11:51 PM


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Have you tried to open resource manager in your server? All the current running services you can see here and memory being used.

Cheers!
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Post #1474887
Posted Thursday, July 18, 2013 2:27 AM
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chekced it was showing cpu usage more tahn 90% for the sqlserver.exe and the menory ussage was full. We stoped the sql service and restarted then the usage reduced.
This situation happned onece in a while.

How do i check what was going wrong at that time? this
Post #1474932
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