[root@lab7-mongo-7 /]# lvdisplay /dev/vg_lab7mongo7/lv_home --- Logical volume --- LV Name /dev/vg_lab7mongo7/lv_home VG Name vg_lab7mongo7 LV UUID s4Cwkh-w7MX-uHRF-sA3f-T96e-AzZ3-8t8WtJ LV Write Access read/write LV Status available # open 1 LV Size 783.61 GiB Current LE 200603 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:2 [root@lab7-mongo-7 /]# df -hP /home Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_lab7mongo7-lv_home 772G 571M 732G 1% /home [root@lab7-mongo-7 /]# umount -l /home [root@lab7-mongo-7 /]# df -hP /home Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_lab7mongo7-lv_root 50G 2.4G 45G 6% / 所以，分区是卸载，但我仍然无法缩小它
[root@lab7-mongo-7 /]# resize2fs /dev/vg_lab7mongo7/lv_home 80G resize2fs 1.41.12 (17-May-2010) resize2fs: Device or resource busy while trying to open /dev/vg_lab7mongo7/lv_home Couldn't find valid filesystem superblock. [root@lab7-mongo-7 /]# e2fsck -ff /dev/vg_lab7mongo7/lv_home e2fsck 1.41.12 (17-May-2010) e2fsck: Device or resource busy while trying to open /dev/vg_lab7mongo7/lv_home Filesystem mounted or opened exclusively by another program? [root@lab7-mongo-7 /]# lsof |grep home [root@lab7-mongo-7 /]#
什么是持有该设备？