[root@localhost ~]# free -m
                   total       used       free     shared    buffers     cached
Mem:           249        244          4          0         38        144
-/+ buffers/cache:         62        187
Swap:          511          0          511

Swap分区 511M 我想在增加 100M容量

建立100M文件
[root@localhost ~]# dd if=/dev/zero of=/var/swap bs=1024 count=102400

具体dd命令可参考帮助

创建swap文件
[root@localhost ~]# /sbin/mkswap /var/swap
Setting up swapspace version 1, size = 104853 kB

增加容量
[root@localhost ~]# /sbin/swapon /var/swap

检查
[root@localhost ~]# free -m
                   total       used       free     shared    buffers     cached
Mem:           249        244          4          0         38        144
-/+ buffers/cache:         62        187
Swap:          611          0          511

[root@localhost ~]# /sbin/swapon -s
Filename                                               Type            Size       Used     Priority
/dev/mapper/VolGroup00-LogVol01          partition       524280  0       -1
/var/swap                                             file               102392  0       -2

让系统每次启动时加载分区
[root@localhost var]# vi /etc/fstab
添加下面一行
/var/swapfile swap swap defaults 0 0


最后编辑： selboo 编辑于2012/03/29 23:46