參考：磁碟檔案系統
1.建立測試指令碼：
[oracle@ocm1 ~]$ vi touchfile.sh
#!/bin/bash
for abc in {1..9}
do
touch /boot/test/$abc
done
"touchfile.sh" 5L, 66C written
2.建立測試目錄、測試指令碼[root@ocm1 oracle]# cd /boot
[root@ocm1 boot]# mkdir test
[root@ocm1 boot]# ls
config-2.6.18-308.el5 symvers-2.6.32-300.10.1.el5uek.gz
config-2.6.32-300.10.1.el5uek System.map-2.6.18-308.el5
grub System.map-2.6.32-300.10.1.el5uek
initrd-2.6.18-308.el5.img test
initrd-2.6.32-300.10.1.el5uek.img vmlinuz-2.6.18-308.el5
lost+found vmlinuz-2.6.32-300.10.1.el5uek
symvers-2.6.18-308.el5.gz
[root@ocm1 boot]# cd -
/home/oracle
[root@ocm1 oracle]# sh touchfile.sh
[root@ocm1 oracle]# cd -
/boot
[root@ocm1 boot]# cd test
[root@ocm1 test]# ls
1 2 3 4 5 6 7 8 9
3.查看當前/boot目錄可用Inodes數量[root@ocm1 test]# df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/sda3 7318528 185460 7133068 3% /
/dev/sda1
26104 50 26054 1% /boot
tmpfs 128334 1 128333 1% /dev/shm
4.修改指令碼，直接將可用Inodes用光[root@ocm1 boot]# cd /home/oracle/
[root@ocm1 oracle]# vi touchfile.sh
#!/bin/bash
for abc in {10..26110}
do
touch /boot/test/$abc
done
~
"touchfile.sh" 5L, 71C written
5.執行指令碼，指令碼未執行完，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，已經無法建立檔案了，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
手動執行建立目錄和檔案命令報同樣錯誤：
[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
