Adjust swap under CentOS

[[email protected]/]# mkdir swap

[[Email protected]/]# CD swap

[[email protected] swap]# dd If=/dev/zero of=swap1 bs=1024 count=524288

Recorded 524288+0 read-in

Recorded the writing of 524288+0.

536870912 bytes (537 MB) Replicated, 2.15306 sec, 249 mb/sec

[Email protected] swap]# Mkswap SWAP1

Setting swap space version 1, size = 524284 KiB

No label, UUID=CA910746-6D60-4CE7-9643-4C1FEEC599A4

[Email protected] swap]# Swapon SWAP1

Swapon:/swap/swap1: Unsafe Permissions 0644, 0600 is recommended.

[Email protected] swap]# Vim/etc/fstab

Add a line:

/swap/swap1 None swap SW 0 0

[Email protected] swap]# swapon-s

File name type size used permission

/dev/dm-0 Partition 2129916 38980-1

/swap/swap1 file 524284 0-2

Finish the call.

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Adjust swap under CentOS