查看内存使用情况Swap，看下面Swap都为0
12># free -m
total used free shared buffers cached
Mem: 15948 15729 218 0 244 6123
-/+ buffers/cache: 9361 6586
Swap: 0 0 0
创建1个8G的文件
dd if=/dev/zero of=8g bs=10M count=800
将文件作为swap之用
14># mkswap /data/8g
mkswap: /data/8g: warning: don’t erase bootbits sectors
on whole disk. Use -f to force.
Setting up swapspace version 1, size = 8191996 KiB
no label, UUID=z35e6daf-7ede-8bm2-b4da-dbcb50392745
启用新建的swap
swapon /data/8g
再查看就有swap了
16># free -m
total used free shared buffers cached
Mem: 15948 15729 218 0 244 6123
-/+ buffers/cache: 9361 6586
Swap: 7999 0 7999
设置为自动启用，最后一行加入命令
17># vim /etc/rc.local
#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don’t
# want to do the full Sys V style init stuff.touch /var/lock/subsys/local
swapon /data/8g
转载请注明：主机帮助 » 如何新建Swap交换分区