nswapdev
nswapdev specifies the number of disk devices that can be
enabled for device swap.
1
25
10
Specify an integer value equal to the number of physical disk devices that have been configured for device swap up to the maximum limit of 25. Only an integer value is allowed (formula values do not work for this paramater). For more information, see Specifying Parameter Values.
nswapdev defines the maximum number of devices that can be
used for device swap.
At system boot time, the kernel creates enough internal data structures to support device swap to the specified number of physical devices that have reserved system swap areas. If the specified value is greater than the number of available devices, the extra data structure space is never used, thus wasting a little bit of memory (<50 bytes per structure). If the value is less than the number of available devices, some devices cannot be used for swap due to lack of supporting data structures in the kernel.
None.