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Memory planning for sql server instances


Memory planning for sql server instances

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phebsix
phebsix
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Hello guys,

Is there any standard calculation for the allocation of sql server maximum memory on sql server instances? So lets assume there is an instance A with a database of 500GB and an instance B with 2 databases of 250GB how do I use a standard method of allocating memory to these instances.

Thank you
GilaMonster
GilaMonster
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Not really that way, depends on the database activity, the portion of the DB that is heavily used, the workload and a whole bunch of other things.

For what to leave for the OS, see chapter 4 of http://www.simple-talk.com/books/sql-books/troubleshooting-sql-server-a-guide-for-the-accidental-dba/
For calculating memory requirements, this may help: http://www.sqlskills.com/blogs/jonathan/post/How-much-memory-does-my-SQL-Server-actually-need.aspx


Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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