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Solaris Advanced Installation Guide

How the Size of Swap Is Determined

If a profile does not explicitly specify the size of swap, the Solaris installation program determines the size of the swap space, based on the system's physical memory. Table 8-4 shows how the size of swap is determined during a custom JumpStart installation.

Table 8-4 How the Size of Swap Is Determined

Physical Memory (in Mbytes) 

Swap Space (in Mbytes) 

16 - 64 

32 

64 - 128 

64 

128 - 512 

128 

Greater than 512 

256 

The Solaris installation program makes the size of swap no more than 20% of the disk where it resides, unless there is free space left on the disk after laying out the other file systems. If free space exists, the Solaris installation program allocates the free space to swap, and if possible allocates the amount shown in Table 8-4.

Note -

Physical memory plus swap space must be a minimum of 32 Mbytes.