我想重新格式化/ dev / md0,这是一个由4个磁盘(sd [bcde])组成的RAID0arrays。 但是,当我试图运行命令mke2fs,我收到以下错误信息:
/dev/md0 is apparently in use by the system; will not make a filesystem here!
我也尝试了mdadm – 停止它,但它没有工作:
mdadm: Cannot get exclusive access to /dev/md0:Perhaps a running process, mounted filesystem or active volume group?
仅供参考,/ dev / md0未安装,并且lsof / fuser的输出仅为空。 有什么想法吗?
[UPDATE1]
lsblk的输出如下所示:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdb 8:16 0 5.5T 0 disk └─md0 9:0 0 21.9T 0 raid0 sdc 8:32 0 5.5T 0 disk └─md0 9:0 0 21.9T 0 raid0 sdd 8:48 0 5.5T 0 disk └─md0 9:0 0 21.9T 0 raid0 sde 8:64 0 5.5T 0 disk └─md0 9:0 0 21.9T 0 raid0
dmsetup表的输出是“找不到设备”,pvs什么都不产生。
[UPDATE2]
磁盘只属于/ dev / md0,不在其他RAID中。 / dev / md0曾经被挂载为一个NFS共享目录。 但即使我停止nfs,它不能解决问题。
没有输出pvdisplay和vgdisplay。
对于“dmsetup信息”,它表示“找不到设备”。
“cat / proc / mdstat”的输出:
Personalities : [raid0] [raid6] [raid5] [raid4] md2 : active raid5 sdp[4] sdo[3] sdn[2] sdm[1] sdl[0] 23441565696 blocks super 1.2 level 5, 512k chunk, algorithm 2 [5/5] [UUUUU] bitmap: 3/44 pages [12KB], 65536KB chunk md1 : active raid5 sdk[5] sdj[4] sdi[3] sdh[2] sdg[1] sdf[0] 29301957120 blocks super 1.2 level 5, 512k chunk, algorithm 2 [6/6] [UUUUUU] bitmap: 2/44 pages [8KB], 65536KB chunk md0 : active raid0 sde[3] sdd[2] sdc[1] sdb[0] 23441565696 blocks super 1.2 512k chunks unused devices: <none>
安装输出:
/dev/sda2 on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0") /dev/sda1 on /boot type ext4 (rw) /dev/sda5 on /tmp type ext4 (rw) /dev/sda3 on /var type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) gvfs-fuse-daemon on /root/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) nfsd on /proc/fs/nfsd type nfsd (rw) /dev/md2 on /backup type ext4 (rw) /dev/md1 on /home type ext4 (rw)