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lock pages in memory on SQL Server 2008 64-bit SP1 Standard Editio

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  #1  
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Igor Marchenko
 
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Default lock pages in memory on SQL Server 2008 64-bit SP1 Standard Editio - 12-08-2009 , 06:34 PM






Hello!

I am just trying to confirm that 'lock pages in memory' has no effect on SQL
Server 2008 64-bit Standard Edition unless I have SP1 CU2 installed:

http://support.microsoft.com/kb/918483

I have just setup Active/Active SQL Server 2008 64-bit STD SP1 cluster. I
was wondering if ability to grant 'lock pages in memory' is a good enough
reason to install CU2.


Advice on this matter is greatly appreciated,
Igor

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Will Alber
 
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Default Re: lock pages in memory on SQL Server 2008 64-bit SP1 Standard Editio - 12-09-2009 , 01:55 AM






Opinions seem to be mixed on this one - but I would favour configuring SQL
Server memory usage such that it is highly unlikely that it'll be affected
by paging operations making "Lock Pages in Memory" redundant.

http://blogs.technet.com/askperf/arc...y-need-it.aspx

....is a good article - although it doesn't really answer the question!

"Igor Marchenko" <IgorMarchenko (AT) discussions (DOT) microsoft.com> wrote

Quote:
Hello!

I am just trying to confirm that 'lock pages in memory' has no effect on
SQL
Server 2008 64-bit Standard Edition unless I have SP1 CU2 installed:

http://support.microsoft.com/kb/918483

I have just setup Active/Active SQL Server 2008 64-bit STD SP1 cluster. I
was wondering if ability to grant 'lock pages in memory' is a good enough
reason to install CU2.


Advice on this matter is greatly appreciated,
Igor

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  #3  
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Erland Sommarskog
 
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Default Re: lock pages in memory on SQL Server 2008 64-bit SP1 Standard Editio - 12-09-2009 , 04:54 PM



Will Alber (junk (AT) crazy-pug (DOT) co.uk) writes:
Quote:
Opinions seem to be mixed on this one - but I would favour configuring SQL
Server memory usage such that it is highly unlikely that it'll be affected
by paging operations making "Lock Pages in Memory" redundant.
Hm, you can't. The point with Lock Pages is that if a driver or some
other component goes mad and starts to chew memory, it will not lead to
SQL Server to be swapped out.

The only argument against it, as I see it, is that a CU is not as well
tested as a Service Pack, and you are taking a bit of a risk there.
Then again, if you ever see SQL Server being swapped out, you should get
this CU, because then you are experiencing a problem addressed by the
hotfix (as it says in the boilerplate.)

--
Erland Sommarskog, SQL Server MVP, esquel (AT) sommarskog (DOT) se

Links for SQL Server Books Online:
SQL 2008: http://msdn.microsoft.com/en-us/sqlserver/cc514207.aspx
SQL 2005: http://msdn.microsoft.com/en-us/sqlserver/bb895970.aspx
SQL 2000: http://www.microsoft.com/sql/prodinf...ons/books.mspx

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  #4  
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Will Alber
 
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Default Re: lock pages in memory on SQL Server 2008 64-bit SP1 Standard Editio - 12-09-2009 , 05:50 PM



Very true - although all the software on my servers is perfect and would
never run away with memory (ahem!) :-D

"Erland Sommarskog" <esquel (AT) sommarskog (DOT) se> wrote

Quote:
Will Alber (junk (AT) crazy-pug (DOT) co.uk) writes:
Opinions seem to be mixed on this one - but I would favour configuring
SQL
Server memory usage such that it is highly unlikely that it'll be
affected
by paging operations making "Lock Pages in Memory" redundant.

Hm, you can't. The point with Lock Pages is that if a driver or some
other component goes mad and starts to chew memory, it will not lead to
SQL Server to be swapped out.

The only argument against it, as I see it, is that a CU is not as well
tested as a Service Pack, and you are taking a bit of a risk there.
Then again, if you ever see SQL Server being swapped out, you should get
this CU, because then you are experiencing a problem addressed by the
hotfix (as it says in the boilerplate.)

--
Erland Sommarskog, SQL Server MVP, esquel (AT) sommarskog (DOT) se

Links for SQL Server Books Online:
SQL 2008: http://msdn.microsoft.com/en-us/sqlserver/cc514207.aspx
SQL 2005: http://msdn.microsoft.com/en-us/sqlserver/bb895970.aspx
SQL 2000:
http://www.microsoft.com/sql/prodinf...ons/books.mspx


__________ Information from ESET NOD32 Antivirus, version of virus
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http://www.eset.com





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http://www.eset.com

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