Device or resource busy
作者：互联网
格式化磁盘显示忙碌，如何解决呢？
[root@jp33e503-11-8 ~]# mkfs.xfs /dev/sdc
mkfs.xfs: cannot open /dev/sdc: Device or resource busy
# 怀疑有程序占用磁盘
[root@jp33e503-11-8 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 223G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 222.5G 0 part
├─zstack-root 253:0 0 220.5G 0 lvm /
└─zstack-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 1.8T 0 disk
└─364cd98f027eef000254d7d7804e26c4d 253:2 0 1.8T 0 mpath /vmssddata
sdc 8:32 0 837.8G 0 disk
└─364cd98f027eef000255fe83d0493dd21 253:3 0 837.8G 0 mpath
sr0 11:0 1 1024M 0 rom
# sdc ==> 364cd98f027eef000255fe83d0493dd21
[root@jp33e503-11-8 ~]# dmsetup ls
zstack-swap (253:1)
zstack-root (253:0)
364cd98f027eef000255fe83d0493dd21 (253:3)
364cd98f027eef000254d7d7804e26c4d (253:2)
# 发现 364cd98f027eef000255fe83d0493dd21
#解除占用
[root@jp33e503-11-8 ~]# dmsetup remove 364cd98f027eef000255fe83d0493dd21
# 重新初始化
[root@jp33e503-11-8 ~]# mkfs.xfs /dev/sdc
meta-data=/dev/sdc isize=512 agcount=4, agsize=54902784 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=219611136, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=107232, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
标签：11,busy,resource,jp33e503,364cd98f027eef000255fe83d0493dd21,sdc,Device,253,root 来源： https://www.cnblogs.com/cptao/p/12849834.html