Method 1: Use a Hard Drive Partition for Additional Swap Space
If you have an additional hard disk, (or space available in an existing disk), create a partition using fdisk command. Let us assume that this partition is called /dev/sdc1
Now setup this newly created partition as swap area using the mkswap command as shown below.
# mkswap /dev/sdc1
Enable the swap partition for usage using swapon command as shown below.
# swapon /dev/sdc1
To make this swap space partition available even after the reboot, add the following line to the /etc/fstab file.
# cat /etc/fstab /dev/sdc1 swap swap defaults 0 0
Verify whether the newly created swap area is available for your use.
# swapon -s Filename Type Size Used Priority /dev/sda2 partition 4192956 0 -1 /dev/sdc1 partition 1048568 0 -2 # free -k total used free shared buffers cached Mem: 3082356 3022364 59992 0 52056 2646472 -/+ buffers/cache: 323836 2758520 Swap: 5241524 0 5241524
Note: In the output of swapon -s command, the Type column will say “partition” if the swap space is created from a disk partition.
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