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2010-06-07 14:40:39
1) A paging space is a type of logical volume with allocated disk space that stores information which is resident in virtual memory but is not currently being accessed.
2) This logical volume has an attribute type equal to paging, and is usually simply referred to as paging space or swap space. When the amount of free RAM in the system is low, programs or data that have not been used recently are moved from memory to paging space to release memory for other activities
3) The amount of paging space required depends on the type of activities performed on the system. If paging space runs low, processes can be lost, and if paging space runs out, the system can panic. When a paging-space low condition is detected, define additional paging space.
The /etc/swapspaces file specifies the paging spaces and the attributes of the paging spaces