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Nt1330 Unit 10

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SQL Server 2012 provides system settings that can be optimized to your particular environment and workload patterns. Some of the most important performance settings are Memory, Network Packet Size, Instant File Initialization and tempdb.

Memory:

Two significant server property configuration settings include maximum and minimum server memory. By default, the software is configured with a minimum memory of 0MB and a maximum memory of 2,147,483,647MB (2TB)

The consequences of leaving the default values for these two settings is sometimes misunderstood and often overlooked. The minimum server memory setting specifies the amount of memory that is not released back to the operating system by SQL Server when allocated. Basically, SQL Server retains on to this minimum level of memory, even if it is no longer needed. …show more content…
Actually, SQL Server allocates memory only as it is required and may or may not reach the minimum server memory value specified.

The minimum server memory setting may not have to be changed except when the operating system constantly requests memory resources for other applications sharing the same memory space. You would like to avoid allocating an excessive amount of memory to the operating system since that could potentially starve a SQL Server instance from memory.

At the same time, the maximum server memory sets limitations for the optimum amount of memory a SQL Server instance can allocate. A memory specification that is set excessively could possibly deprive an operating system from memory resources. The highest server memory value must never equal or go over the total amount of available server memory. The memory value needs to be at the very least 1GB less than the overall server memory.

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