From the course: Linux System Engineer: Advanced Disk Systems and System Backup

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Create temporary swap files

Create temporary swap files

From the course: Linux System Engineer: Advanced Disk Systems and System Backup

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Create temporary swap files

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- [Male Instructor] A Windows style swap file is possible in Linux, although not always desirable. Accessing a swap file takes longer than accessing a raw partition, making it slower. The reason we may want to create a swap file is flexibility. We may not have any free space on our drive to create a new partition for swap. In this case, we would create a new logical volume and make it swap. If that's not possible, then creating a swap file is our only choice. Due to the slower speed, a swap file should always have a lower priority than a swap partition. Let's check to see how much free space we have on our root drive. In a Terminal, type in "df -H" and hit Enter. It looks like we have about 1.8 gigabytes of free space Let's create a 500 megabyte swap file. We'll create this using DD. Type in "Clear" and then type in "sudo dd if=/dev/zero" as our input file. Space "of=/swapfile" is the name of the swap file. Space "count=1 bs=500MiB". This is the block size. And hit Enter. Type in your…

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