Linux 扩展LV引起的问题

本文发布时间: 2019-Mar-22
1.在扩展逻辑卷大小后,使用df -lh查看发现分区并没有被扩展,还是原来的大小。control vg_ztone-LogVol00 vg_ztone-LogVol01 vg_ztone-LogVol02[root@ztone ~]# lvextend -l 4339 /dev/mapper/vg_ztone-LogVol02 Extending logical volume LogVol02 to 33.90 GiB Logical volume LogVol02 successfully resized[root@ztone ~]# df -lhFilesystem Size Used Avail Use% Mounted on/dev/mapper/vg_ztone-LogVol02 9.9G 3.7G 5.7G 40% /tmpfs 1004M 88K 1004M 1% /dev/shm/dev/sda1 97M 26M 67M 28% /boot/dev/mapper/vg_ztone-LogVol01 2.0G 68M 1.9G 4% /tmp查看LV显示正常:root@ztone ~]# lvdisplay--- Logical volume --- LV Name /dev/vg_ztone/LogVol02 VG Name vg_ztone LV UUID 8ynSMD-Dm2X-4oo9-5KOw-4wq4-IY7W-t9vhia LV Write Access read/write LV Status available # open 1 LV Size 33.90 GiB Current LE 4339 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1解决办法:在扩展时要加上+号,如:lvextend -L 35G /dev/mapper/vg_ztone-LogVol02使用以下命令重新检测分区情况:[root@ztone vg_ztone]# e2fsck -f /dev/mapper/vg_ztone-LogVol02e2fsck 1.41.12 (17-May-2010)/dev/mapper/vg_ztone-LogVol02 is mounted.WARNING!!! The filesystem is mounted. If you continue you ***WILL***cause ***SEVERE*** filesystem damage.Do you really want to continue (y/n)? yes/dev/mapper/vg_ztone-LogVol02: recovering journalClearing orphaned inode 525325 (uid=42, gid=42, mode=010644, size=0)Pass 1: Checking inodes, blocks, and sizesPass 2: Checking directory structurePass 3: Checking directory connectivityPass 4: Checking reference countsPass 5: Checking group summary information注意:如果在己挂载的分区上执行上述命令,则vg会出现错误,需重启系统。/dev/mapper/vg_ztone-LogVol02: ***** FILE SYSTEM WAS MODIFIED *****/dev/mapper/vg_ztone-LogVol02: ***** REBOOT LINUX *****/dev/mapper/vg_ztone-LogVol02: 186452/655360 files (0.1% non-contiguous), 1010493/2621440 blocks重新调整文件系统大小:[root@ztone vg_ztone]# resize2fs /dev/mapper/vg_ztone-LogVol02resize2fs 1.41.12 (17-May-2010)Filesystem at /dev/mapper/vg_ztone-LogVol02 is mounted on /; on-line resizing requiredold desc_blocks = 1, new_desc_blocks = 3Performing an on-line resize of /dev/mapper/vg_ztone-LogVol02 to 8886272 (4k) blocks.The filesystem on /dev/mapper/vg_ztone-LogVol02 is now 8886272 blocks long.[root@ztone vg_ztone]# df -lhFilesystem Size Used Avail Use% Mounted on/dev/mapper/vg_ztone-LogVol02 34G 3.8G 28G 12% /tmpfs 1004M 88K 1004M 1% /dev/shm/dev/sda1 97M 26M 67M 28% /boot/dev/mapper/vg_ztone-LogVol01 2.0G 68M 1.9G 4% /tmp分区空间显示正常错误信息:在己挂载的分区上执行上述命令后无法正常运行lvdisplay和vgdisplay e2fsck -f /dev/mapper/vg_ztone-LogVol02[root@ztone vg_ztone]# lvextend -L 10G /dev/mapper/vg_ztone-LogVol02 /var/lock/lvm/V_vg_ztone:aux: open failed: Invalid argument Can't get lock for vg_ztone[root@ztone vg_ztone]# lvextend -L +10G /dev/mapper/vg_ztone-LogVol02 /var/lock/lvm/V_vg_ztone:aux: open failed: Invalid argument Can't get lock for vg_ztone[root@ztone vg_ztone]# vgdisplay /var/lock/lvm/V_vg_ztone:aux: open failed: Invalid argument Can't get lock for vg_ztone重新启动系统后恢复正常[root@ztone ~]# vgdisplay --- Volume group --- VG Name vg_ztone System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 7 VG Access read/write VG Status resizable MAX LV 0 Cur LV 3 Open LV 3 Max PV 0 Cur PV 1 Act PV 1 VG Size 49.90 GiB PE Size 8.00 MiB Total PE 6387 Alloc PE / Size 5107 / 39.90 GiB Free PE / Size 1280 / 10.00 GiB VG UUID 3e6uYq-vtMm-oStP-v7jm-mzs4-2CzK-c0DDmO


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2024-Mar-04 02:11pm
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