创建VG LVM时，报错"Device /dev/sdb excluded by a filter"
- 创建pv时，发现sdd磁盘报错，被筛选器排除了，这是什么原因呢
[root@server ~]# pvcreate /dev/sdd /dev/sde Device /dev/sdd excluded by a filter. Physical volume "/dev/sde" successfully created.
- 并且sdd磁盘也无法格式化，必须加-f强制格式化才行，提示已经存在一个文件系统了，看到这里大概就猜到了，因为存在一个文件系统，所有无法直接创建新的文件系统
[root@server ~]# mkfs.xfs /dev/sdd mkfs.xfs: /dev/sdd appears to contain an existing filesystem (linux_raid_member). mkfs.xfs: Use the -f option to force overwrite.
##我们创建一个新的磁盘看下有什么不同
方法一
- 格式化文件系统，再进行pv创建
方法二
- parted重新创建分区表
##找一个同样报错的磁盘sdf
[root@Server]# parted /dev/sdb
GNU Parted 3.1
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel msdos
(parted) print
Model: AVAGO MR9361-8i (scsi)
Disk /dev/sdb: 70.0TB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
(parted) quit
Information: You may need to update /etc/fstab.
[root@anybackup AnyBackupServer]# vgcreate datavg /dev/sdb
WARNING: dos signature detected on /dev/sdb at offset 510. Wipe it? [y/n]: y
Wiping dos signature on /dev/sdb.
Physical volume "/dev/sdb" successfully created.
Volume group "datavg" successfully created
[root@server ~]# pvcreate /dev/sdf Can't open /dev/sdf exclusively. Mounted filesystem? Can't open /dev/sdf exclusively. Mounted filesystem?
##根据报错，查看下是否有挂载
[root@server ~]# df -hl Filesystem Size Used Avail Use% Mounted on devtmpfs 476M 0 476M 0% /dev tmpfs 487M 0 487M 0% /dev/shm tmpfs 487M 7.7M 479M 2% /run tmpfs 487M 0 487M 0% /sys/fs/cgroup /dev/sda3 20G 2.6G 17G 14% / /dev/sda1 197M 110M 88M 56% /boot tmpfs 98M 0 98M 0% /run/user/0 [root@server ~]# umount /dev/sdf umount: /dev/sdf: not mounted
[root@server ~]# cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] md5 : active (auto-read-only) raid5 sdg[3] sdf[4] 41908224 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/2] [U_U] [root@server ~]# mdadm -S /dev/md5 mdadm: stopped /dev/md5
[root@server ~]# pvcreate /dev/sdf WARNING: dos signature detected on /dev/sdf at offset 510. Wipe it? [y/n]: y Wiping dos signature on /dev/sdf. Physical volume "/dev/sdf" successfully created.
THE END
