swapmem_on
swapmem_on enables pseudo-swap reservation.
0 (disable pseudo-swap reservation)
1 (enable pseudo-swap reservation)
1
Specify integer value of 0 or 1. For more
information, see Specifying
Parameter Values.
swapmem_on enables or disables the reservation of
Virtual memory (swap) space is normally allocated from the device swap area on system disks. However, on systems that have massive amounts of installed RAM and large disks or disk arrays, there may be situations where it would be advantageous to not be restricted to the allocated device swap space.
For example, consider an administrator running a system in single-user mode that has 200 Mbytes of installed RAM, only 20 Mbytes of which is used by the kernel, and 1 Gbyte of swap area on the root disk array.
Suppose a process is running that requires 1.1 Gbytes of swap space. Since no other users have processes running on the system, providing access to the unused RAM by the swap system would provide sufficient swap space.swapmem_on accomplishes this.
Administrators of workstations and smaller systems may prefer to disable this capability, depending on system and user needs.
None.