{"id":354,"date":"2010-08-09T04:19:00","date_gmt":"2010-08-09T10:19:00","guid":{"rendered":"http:\/\/blog.supportpro.com\/2010\/08\/how-to-add-a-swap-file-in-linux\/"},"modified":"2018-10-04T06:36:21","modified_gmt":"2018-10-04T12:36:21","slug":"how-to-add-a-swap-file-in-linux","status":"publish","type":"post","link":"https:\/\/www.supportpro.com\/blog\/how-to-add-a-swap-file-in-linux\/","title":{"rendered":"How to add a swap file in Linux"},"content":{"rendered":"

Swap space is defined as a temporary storage\u00a0 that can be used when
\nmachine’s memory requirements exceeds the size of the RAM available.
\nUsually size of the swap partition is double of RAM memory.
\nYou can add a swap partition or add a swap file. I would recommend you
\nto add a swap partition, but sometimes isn’t\u00a0 easy if you do not have
\nenough free space. This article explains how to add a swap file to a
\nLinux system.
\nDetermine the size of the new swap file and multiple by 1024 to find
\nthe block size. For example, the block size of a 128 MB swap file is
\n131072.
\nOpen the shell prompt as root and type the below command.
\ndd if=\/dev\/zero of=\/swapfile bs=1024 count=131072
\nSetup the swap file with the following command:
\nmkswap \/swapfile
\nTo facilitate swap file immediately but not automatically at boot time.
\nswapon \/swapfile
\nAdd the below line in \/etc\/fstab to enable the swap at boot time.
\n\/swapfile swap swap defaults 0 0
\nIt will enable the new swap file when the next time system boots.
\nConfirm newly added swap file system by checking the output of the
\ncommands cat \/proc\/swaps or free<\/p>\n

If you require help, contact SupportPRO Server Admin<\/a><\/p>\n

\"Server<\/a><\/span>