问题

data分区扩容1.5T>2.T

root@004:~# lsblk

sdb                         8:16   0   2.5T  0 disk 
└─sdb1                      8:17   0   2.5T  0 part 
  └─data--vg-data--lv     253:0    0   2.5T  0 lvm  /data
root@004:~# df -h
/dev/mapper/data--vg-data--lv      1.5T  1.4T   28G  99% /data

执行提示resize2fs: Permission denied to resize filesystem

resize2fs /dev/data-vg/data-lv
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/data-vg/data-lv is mounted on /data; on-line resizing required
old_desc_blocks = 192, new_desc_blocks = 320
resize2fs: Permission denied to resize filesystem

解决方案

1. 关闭进程

找到的进程和服务关闭

lsof | grep /dev/data-vg/data-lv
fuser -vm
umount -l /dev/data-vg/data-lv

2. umount

umount -l /dev/data-vg/data-lv

3. 检查文件系统并修复

要手动YES处理去掉 -y

e2fsck -f -y /dev/data-vg/data-lv

4. 重新resize2fs

resize2fs /dev/data-vg/data-lv

5. 重新挂载

mount -a