Swap partition created under Linux system

The swap partition frees up some of the space in the hard disk space when the system's physical memory is not available for use by the currently running program. The freed space may come from programs that have not been manipulated for a long time, and the freed space is temporarily saved to the swap partition until those programs are run and the saved data is restored to memory from the swap partition.

Let's do a little experiment to demonstrate how to create a swap partition and make it effective

First use FDISK/DEV/SDB to add a partition

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After adding the partition sdb1 you also need to modify the ID of the SDB1 system to

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To see if the creation was successful

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mkswap-l swap_sdb1/dev/sdb1 to format the previously added/DEV/SDB1 partition as SWAP type 650) this.width=650; src= http://s3.51cto.com/ Wyfs02/m00/86/83/wkiol1fbmsljuzxwaabwkza8z9a531.png-wh_500x0-wm_3-wmp_4-s_2845040926.png "style=" Float:none; " Title= "5 formatted as a swap partition and view. png" alt= "wkiol1fbmsljuzxwaabwkza8z9a531.png-wh_50"/>

swapon-a/dev/sdb1 activating swap partition

Swapon-s view the currently active swap partition

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In order to automatically mount the boot, we need to modify the/etc/fstab configuration file

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swapoff/dev/sdb1 Disabling/DEV/SDB1

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Swap partition created under Linux system