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SQL Server 2005 General Discussion
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How to Set Minimum and Maximum memory in AWE...
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How to Set Minimum and Maximum memory in AWE SQL2005
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adeel.imtiaz
adeel.imtiaz
Posted Tuesday, October 09, 2012 4:16 AM
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Dear All,
I have 16 GB server physical ram windows 2003 EE 32 Bit.
I want to enable AWE with :-
Minimum 7000 MB means 7 Gb
Maximum 11000 MB means 11 GB
but when i run.
dbcc memorystatus
it shows me old values.
Please help me in this regard. I will be obliged.
Please find attached screenshot.
Thanks
Malik Adeel Imtiaz
Post Attachments
sql MEMORY ISSUE.JPG
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Post #1370286
GilaMonster
GilaMonster
Posted Tuesday, October 09, 2012 5:25 AM
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Setting AWE on requires a service restart to take effect.
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass
Post #1370327
adeel.imtiaz
adeel.imtiaz
Posted Tuesday, October 09, 2012 5:42 AM
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I already restarted the services and complete server restart .
But still no results.
Post #1370338
GilaMonster
GilaMonster
Posted Tuesday, October 09, 2012 5:56 AM
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Is the PAE switch present in boot.ini? (or is it a 64-bit OS?)
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass
Post #1370341
adeel.imtiaz
adeel.imtiaz
Posted Tuesday, October 09, 2012 6:11 AM
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Windows 2003 32 Bit Enterprise Edition.
PAE switch is enabled.
Post #1370352
adeel.imtiaz
adeel.imtiaz
Posted Tuesday, October 09, 2012 6:26 AM
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I have resolved the problem.....
I have added /3g switch with / PAE and restart the server. and problem has been resolved.
Thank you so much for your support.
Thanks
Malik Adeel Imtiaz
Post #1370362
adeel.imtiaz
adeel.imtiaz
Posted Tuesday, October 09, 2012 10:58 PM
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Dear Gila Monster,
Thank you so much for your great support and time.
Thanks
Malik Adeel Imtiaz
Post #1370672
GilaMonster
GilaMonster
Posted Wednesday, October 10, 2012 1:05 AM
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If you have 16 GB of memory, you do not want the /3GB switch enabled, it can be harmful. I suggest you remove that switch. You just need the /PAE and AWE enabled within SQL Server.
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass
Post #1370720
adeel.imtiaz
adeel.imtiaz
Posted Wednesday, October 10, 2012 1:43 AM
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Actually first we have tried with out /3g switch and without /3g switch that we have noticed that AWE memory did not cross 2 GB memory.
After that we have enabled /3g switch and AWE memory crosses 5 GB.
Please see attachment.
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AWE_settings.docx
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Post #1370741
GilaMonster
GilaMonster
Posted Wednesday, October 10, 2012 2:22 AM
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Again, you do not need /3gb for memory usage above 4GB. That's the /PAE switch and the AWE settings alone. With 16 GB memory, /3GB can be harmful as it reduces the number of page table entries you have and can result in memory issues for the OS.
Chapter 4:
http://www.simple-talk.com/books/sql-books/troubleshooting-sql-server-a-guide-for-the-accidental-dba/
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass
Post #1370757
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