有关inode的相关问题

1、有关inode的相关问题

[root@mysql2 /]# mkfs.ext4 -i 2048 -b 8192 -f 1024 /dev/sdb1
Warning: blocksize 8192 not usable on most systems.
mkfs.ext4: invalid option -- 'f'
Usage: mkfs.ext4 [-c|-l filename] [-b block-size] [-C cluster-size]
    [-i bytes-per-inode] [-I inode-size] [-J journal-options]
    [-G flex-group-size] [-N number-of-inodes]
    [-m reserved-blocks-percentage] [-o creator-os]
    [-g blocks-per-group] [-L volume-label] [-M last-mounted-directory]
    [-O feature[,...]] [-r fs-revision] [-E extended-option[,...]]
    [-t fs-type] [-T usage-type ] [-U UUID] [-jnqvDFKSV] device [blocks-count
    
    
    
[root@mysql2 /]# mkfs.ext4 -i 2048   /dev/sdb1
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
2621440 inodes, 1310464 blocks
65443 blocks (4.99%) reserved for the super user
First data block=0
Maximum filesystem blocks=1087395840
80 block groups
16560 blocks per group, 16560 fragments per group
32768 inodes per group
Superblock backups stored on blocks: 
    16560, 49680, 82800, 115920, 149040, 414000, 447120, 811440

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done 



[root@mysql2 /]# df -i
Filesystem              Inodes  IUsed    IFree IUse% Mounted on
/dev/mapper/rhel-root 10240000 119808 10120192    2% /
devtmpfs                229442    399   229043    1% /dev
tmpfs                   233408      7   233401    1% /dev/shm
tmpfs                   233408    560   232848    1% /run
tmpfs                   233408     16   233392    1% /sys/fs/cgroup
/dev/sda1                95272    328    94944    1% /boot
tmpfs                   233408     22   233386    1% /run/user/0
/dev/sdb1              2621440     11  2621429    1% /sdb
[root@mysql2 /]# 

[root@mysql2 /]# mkfs.ext4 -i 1024    /dev/sdb1
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
5242880 inodes, 1310464 blocks
65444 blocks (4.99%) reserved for the super user
First data block=0
Maximum filesystem blocks=540547072
160 block groups
8224 blocks per group, 8224 fragments per group
32768 inodes per group
Superblock backups stored on blocks: 
    8224, 24672, 41120, 57568, 74016, 205600, 222048, 402976, 666144, 
    1028000

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

 2、如何查看哪个目录下文件数比较多

**********
写到log中
**********

find /test -maxdepth 1 -type d | while read dir;
do
account=$(find "$dir" -type f | wc -l )
echo "$dir : $account" >> log.txt
done

***********
将以上取出的数据进行排序
***********
cat log.txt |awk '{print $3}' | sort -nr | head -1