Virtual memory configuration

[Vimala L]

Hello there.

My m/c is Pentium III 500MHz with 320MB RAM. I have Redhat linux 7.3 installed.

One of the applications I want to install requires 512MB RAM. Since the hardware limit of m/c doesn't allow me to increase the RAM capacity futher, I wish to configure virtual memory and swap space to 512MB and 1GB respectively. I have enough of hard disk space.

I read about fdisk and mkswap and tried few things but going nowhere. Your inputs are very much appreciated.

Thanks,
Vimala.

[U.SivaKumar_2 · Accepted solution]

Hi,
Commands in order to create swap space
1) mkswap
2) swapon
man mkswap
man swapon
will give you more details.
After giving swapon you have put the swap entry
in /etc/fstab.
man fstab

regards.
U.SivaKumar

[I_M]

Hi

the max swap partition size is 2GB. And you can use multiple swaps. Some people create swap on different HDs for performance reason. Set them as same priority.

/dev/hda7 swap swap defaults 0 0

This is my swap config.

fdisk steps.

# fdisk /dev/hda

"n" for create new partition.
"t" for set the partition type.
swap should be 82.
"w" for write & quit.

These are all you shold know.

Good luck