模擬LINUX磁盤分區有可用空間無可用Inodes時報錯問題

1.創建測試腳本：

[oracle@ocm1 ~]$ vi touchfile.sh

#!/bin/bash

for abc in {1..9}

do

touch /boot/test/$abc

done

"touchfile.sh" 5L, 66C written

2.創建測試目錄、測試腳本

[root@ocm1 oracle]# cd /boot

[root@ocm1 boot]# mkdir test

[root@ocm1 boot]# ls

config-2.6.18-308.el5 symvers-2.6.32-300.10.1.el5uek.gz

config-2.6.32-300.10.1.el5uek System.map-2.6.18-308.el5

grub System.map-2.6.32-300.10.1.el5uek

initrd-2.6.18-308.el5.img test

initrd-2.6.32-300.10.1.el5uek.img vmlinuz-2.6.18-308.el5

lost+found vmlinuz-2.6.32-300.10.1.el5uek

symvers-2.6.18-308.el5.gz

[root@ocm1 boot]# cd -

/home/oracle

[root@ocm1 oracle]# sh touchfile.sh

[root@ocm1 oracle]# cd -

/boot

[root@ocm1 boot]# cd test

[root@ocm1 test]# ls

1 2 3 4 5 6 7 8 9

3.查看當前/boot目錄可用Inodes數量

[root@ocm1 test]# df -i

Filesystem Inodes IUsed IFree IUse% Mounted on

本欄目更多精彩內容：http://www.bianceng.cn/OS/Linux/

/dev/sda3 7318528 185460 7133068 3% /

/dev/sda1 26104 50 26054 1% /boot

tmpfs 128334 1 128333 1% /dev/shm

4.修改腳本，直接將可用Inodes用光

[root@ocm1 boot]# cd /home/oracle/

[root@ocm1 oracle]# vi touchfile.sh

#!/bin/bash

for abc in {10..26110}

do

touch /boot/test/$abc

done

~

"touchfile.sh" 5L, 71C written

5.執行腳本，腳本未執行完，即報錯：No space left on device，

事實上此時用df -h可以看到目錄下有可用空間，可是因為沒有Inodes，已經無法新建文件了，報錯為：No space left on device

[root@ocm1 oracle]# sh touchfile.sh

[root@ocm1 oracle]# sh touchfile.sh

touch: cannot touch `/boot/test/26064': No space left on device

touch: cannot touch `/boot/test/26065': No space left on device

………………………………………………

touch: cannot touch `/boot/test/26109': No space left on device

touch: cannot touch `/boot/test/26110': No space left on device

[root@ocm1 oracle]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda3 28G 11G 15G 43% /

/dev/sda1 99M 21M 73M 23% /boot

tmpfs 502M 0 502M 0% /dev/shm

[root@ocm1 oracle]# df -i

Filesystem Inodes IUsed IFree IUse% Mounted on

/dev/sda3 7318528 185460 7133068 3% /

/dev/sda1 26104 26104 0 100% /boot

tmpfs 128334 1 128333 1% /dev/shm

手動執行創建目錄和文件命令報同樣錯誤：

[root@ocm1 oracle]# cd /boot/

[root@ocm1 boot]# mkdir a

mkdir: cannot create directory `a': No space left on device

[root@ocm1 boot]# touch abc

touch: cannot touch `abc': No space left on device