Need Help Increasing Swap by creating a swap file

froggo · 06-12-2006, 05:37 PM

Hi i have a server with 2gb of memory and i would now like to set the swap twice the size how can i do this with? I was thinking about creating a swapfile but can't remember how... can someone please guide me in creating this?

the is no more free space to create a partition...

nadroj · 06-12-2006, 05:44 PM

i believe the commands are 'swapon' and 'mkswap'
i dont think you should bother wasting harddrive space with swapping on a system with this much memory. swap files are used after physical memory is full and is much slower. with 2GB of memory, is your system really using all of this at any one time? if you really want to have a swap file i would definetly not make it 4GB. maybe 0.5GB.

just my opinion.

MarioT · 06-13-2006, 04:43 AM

The best would be to create another swap partition.
If you realy want swap file...

dd if=/dev/zero of=swapfile bs=1024 count=X

where X is number of blocks

chmod 600 swapfile

mkswap swapfile

swapon swapfile

edit your fstab

/your_dir/swapfile swap swap defaults 0 0

froggo · 06-13-2006, 08:04 AM

Hey thanks alot works great