磁盘重新格式化报错 is apparently in use by the system； will not make a filesystem here!

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 现象：

        部署服务的时候发现磁盘格式不对，需要重新格式化磁盘格式

        根据报错，定位到正在被系统使用

[root@handsome_ta wps]# mkfs.ext4 /dev/sdb
mke2fs 1.42.9 (28-Dec-2013)
/dev/sdb is entire device, not just one partition!
Proceed anyway? (y,n) y
/dev/sdb is apparently in use by the system; will not make a filesystem here!

解决：

       设备繁忙使用，强制杀掉占用/dev/sdb的进程

[root@handsome_ta data]# fuser -km /dev/sdb

        执行完重新格式化

        

效果：

        

[root@handsome_ta data]# fuser -km /dev/sdb
/dev/sdb:              863e  1096e  1124e  1743e  1773e  1819e  1828e  1859e  1882e  1910e  1919e  1949m  1991e  2000e  2002m  2015m  2040e  2078e  2121e  2128e  2171e  2177e  2187e  2203e  2232e  2285e  2316e  2326cm  2335e  2378e  2433e  2444e  2480cm  2501cm  2502e  2504e  2508e  2532e  2545m  2608e  2616cm  2617m  2618m  2644m  2646e  2651e  2653m  2661e  2669m  2677e  2714m  2734m  2766e  2777m  2781e  2802m  2813m  2866e  2904e  2992m  3032m  3090m  3093m  3100cm  3109m  3111m  3131m  3132m  3133m  3134m  3136m  3137m  3138m  3162m  3172m  3188m  3190cm  3193m  3209m  3214m  3235m  3247m  3254m  3255m  3301m  3302m  3304m  3357m  3358m  3644m  3677m  3731m  3732m  3733m  3734m  3735m  3736m  3737m  3762m  3763m  3764m  3765m  3839e  3846cm  3847cm  3935m  4020m  4061m  4080cm  4083m  4084cm  4101m  4128m  4132m  4140m  4268m  4275m  4468m  4534m  4538m  4548m  4551m  4555m  4592m  4630m  4633m  4634m  4637m  4638m  4639m  4645m  4649m  4655m  4657m  4663m  4664m  4665m  4666m  4667m  4672m  4673m  4719m  4720m  4721m  4722m  4729m  4730m  4731m  4732m  4733m  4734m  4735m  4739m  4740m  4741m  4742m  4743m  4744m  4745m  4746m  4748m  4750m  4752m  4823m  4825ce  4827cm  4828ce  4830cm  4831cm  4835cm  4836cm  4849m  4850m  4875m  4876m  4986e  5008m  5010m  5041m  5048m  5091m  5126m  5131m  5186m  5207m  5627m  5628m  5629m  5630m  5631m  5632m  5633m  5634m  5635m  5637m  5661cm  5662cm  5684ce  5747e  5767e  5792m  5806m  5834e  5863m  5889e  5923e  5935m  5971e  5975m  6018m  6512cm  6513cm  6514cm  6515cm  6616cm  6620cm  6899cm  7094cm  7319cm 14072cm 15320cm 15321cm 15322cm
Could not kill process 4827: No such process
Could not kill process 4830: No such process
Could not kill process 4849: No such process
Could not kill process 6513: No such process
Could not kill process 6514: No such process
Could not kill process 6515: No such process
[root@handsome_ta data]# mkfs.ext4 -F /dev/sdb
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
13107200 inodes, 52428800 blocks
2621440 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2199912448
1600 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

ok

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