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Guidelines for adding storage to a storage system that uses array LUNs

Starting with Data ONTAP 8.2.1, memory is allocated dynamically for storage devices as you present them to a storage system that uses array LUNs. Depending on the memory configuration of the particular storage system, you should set the bootarg.disk.init.dynamic.allocation variable to true or false at boot time.

If you set the bootarg.disk.init.dynamic.allocation variable to true (for example setenv bootarg.disk.init.dynamic.allocation? true) at boot time, memory is allocated only for the number of storage devices visible to the system at that time. Memory is allocated dynamically if and when you present more storage devices to the system at run time.

If you set the bootarg.disk.init.dynamic.allocation variable to false (for example setenv bootarg.disk.init.dynamic.allocation? false) at boot time, memory is allocated for the maximum number of storage devices allowed for that platform.

By default, the bootarg.disk.init.dynamic.allocation variable is set to true.