System Administration Guide

Swap Space

Swap areas are really file systems used for swapping. Swap areas should be sized based on the requirements of your applications. Check with your vendor to identify application requirements.

Table 62-5 describes the formula used to size default swap areas by the Solaris 2.x installation program. These default swap sizes are a good place to start if you are not sure how to size your swap areas.

Table 62-5 Default Swap Sizes

If Your Physical Memory Size Is ... 

Your Default Swap Size Is ... 

16-64 Mbytes 

32 Mbytes 

64-128 Mbytes 

64 Mbytes 

128-512 Mbytes 

128 Mbytes 

greater than 512 Mbytes 

256 Mbytes 

See Chapter 30, Configuring Additional Swap Space (Tasks) for information about managing swap space.