Click here to monitor SSC
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


SQL Instance Memory Allocation


SQL Instance Memory Allocation

Author
Message
Ness
Ness
SSC Veteran
SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)

Group: General Forum Members
Points: 207 Visits: 974
Hi All,

I have a 64bit server with 128Gb RAM installed and I am planning on putting a default instance of sql 2008r2 Standard Edition on it. I additionally intend to add a named instance as well on that server. I know that SQL 2008R2 SE is limited to 64Gb RAM but can the usage of 2 instances utilise all of the RAM available or will it have to share 64Gb?

Thanks in advance

EH

SQL DBA
Every day is a school day, and don't trust anyone who tells you any different.
http://sqlblogness.blogspot.co.uk
Brandie Tarvin
Brandie Tarvin
SSCertifiable
SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)

Group: General Forum Members
Points: 7831 Visits: 8760
According to Brent Ozar's blog (in the comments) it's 64GB per instance. But you should read his reply to that comment.

http://www.brentozar.com/archive/2010/06/sql-server-r-standard-supports-less-memory/

EDIT: You should also consider what will happen to the OS if you're using 2 instances that gobble up the rest of the server's RAM.

Brandie Tarvin, MCITP Database AdministratorLiveJournal Blog: http://brandietarvin.livejournal.com/On LinkedIn!, Google+, and Twitter.Freelance Writer: ShadowrunLatchkeys: Nevermore, Latchkeys: The Bootleg War, and Latchkeys: Roscoes in the Night are now available on Nook and Kindle.
Ness
Ness
SSC Veteran
SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)

Group: General Forum Members
Points: 207 Visits: 974
Thanks for the response Brandie - The named instance is to be used as a warm standby for DR, so there is no real performance concerns as the default instance will be switched off if required

SQL DBA
Every day is a school day, and don't trust anyone who tells you any different.
http://sqlblogness.blogspot.co.uk
Brandie Tarvin
Brandie Tarvin
SSCertifiable
SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)

Group: General Forum Members
Points: 7831 Visits: 8760
I don't advise using the same server for a warm standby of your primary database. If you lose the server, you lose both the primary and the stand by.

Brandie Tarvin, MCITP Database AdministratorLiveJournal Blog: http://brandietarvin.livejournal.com/On LinkedIn!, Google+, and Twitter.Freelance Writer: ShadowrunLatchkeys: Nevermore, Latchkeys: The Bootleg War, and Latchkeys: Roscoes in the Night are now available on Nook and Kindle.
Ness
Ness
SSC Veteran
SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)SSC Veteran (207 reputation)

Group: General Forum Members
Points: 207 Visits: 974
The DR is not for the same server - It's a warm standby of another server but always worth mentioning for others reading the post. It wouldn't really meet the DR requireements if it was on the same one.

Thanks

SQL DBA
Every day is a school day, and don't trust anyone who tells you any different.
http://sqlblogness.blogspot.co.uk
Brandie Tarvin
Brandie Tarvin
SSCertifiable
SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)SSCertifiable (7.8K reputation)

Group: General Forum Members
Points: 7831 Visits: 8760
In that case, I'd make sure you have enough RAM for both instances to be up (when the other server fails) and still be able to run the OS, etc. RAM is cheap and CYA is good.

Brandie Tarvin, MCITP Database AdministratorLiveJournal Blog: http://brandietarvin.livejournal.com/On LinkedIn!, Google+, and Twitter.Freelance Writer: ShadowrunLatchkeys: Nevermore, Latchkeys: The Bootleg War, and Latchkeys: Roscoes in the Night are now available on Nook and Kindle.
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search