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スワップ領域の作成

Linux

Last updated at 2015-01-09Posted at 2015-01-09

ここでは1GBのスワップ領域を作成する。

作成前

# free -m
             total       used       free     shared    buffers     cached
Mem:           992        274        717         12          0         78
-/+ buffers/cache:        195        797
Swap:            0          0          0

スワップ領域の作成

# dd if=/dev/zero of=/swapfile bs=1M count=1024
# mkswap /swapfile 
# swapon /swapfile

作成後

# free -m
             total       used       free     shared    buffers     cached
Mem:           992        268        724         12          0         77
-/+ buffers/cache:        189        803
Swap:         1023          0       1023

OS起動時に有効になるようにしておく。

# echo '/swapfile swap swap defaults 0 0' >> /etc/fstab

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