#########################################################################
# Searchable Keyword: swap swapon mkswap dd 

		Linux swap file
	Adding, deleting, on and off

To add a swap file on a linux host and have the system begin to us it.

	- First create a file with no holes for swap use.
		dd if=/dev/zero of=swapfile1 bs=52k count=5000
	- Intialize it for swap use on a Linux host
		mkswap swapfile1	
	- Tell the host to use new swap file
		swapon ./swapfile1
	- List physical and swap area memory.
	# free
             total       used       free     shared    buffers     cached
Mem:        231424     228636       2788          0       2112      27480
-/+ buffers/cache:     199044      32380
Swap:      1044264     571708     472556


To remove and delete a swap file from a linux host.

	- swapoff ./swapfile1
	- rm -rf ./swapfile1
# free
             total       used       free     shared    buffers     cached
Mem:        231424     228928       2496          0        236      21016
-/+ buffers/cache:     207676      23748
Swap:       784272     530900     253372





See also Solarisnotes on swap

#-------------------------------------------------------------------------------#