收集必要信息
[root@ns3723990 /data]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda4 DTVG lvm2 a-- 5.35t 0
/dev/sdb1 DTVG lvm2 a-- 5.46t 0
/dev/sdc1 DTVG lvm2 a-- 5.46t 0
/dev/sdd1 DTVG lvm2 a-- 5.46t 0
/dev/sde1 DTVG lvm2 a-- 5.46t 1.83t
[root@ns3723990 /data]# vgs -v
VG Attr Ext #PV #LV #SN VSize VFree VG UUID VProfile
DTVG wz--n- 4.00m 5 1 0 27.18t 1.83t KBJwfa-GO0R-rjWS-Vrfs-rss3-dGVk-XpV7Q5
[root@ns3723990 /data]# lvs -v
LV VG #Seg Attr LSize Maj Min KMaj KMin Pool Origin Data% Meta% Move Cpy%Sync Log Convert LV UUID LProfile
data DTVG 5 -wi-ao---- 25.35t -1 -1 251 0 ehGOzZ-CwWx-o72d-OlJU-JLyO-5uaZ-tBjyIO
[root@ns3723990 /data]#
开始修改VG名字
[root@ns3723990 /data]# vgrename KBJwfa-GO0R-rjWS-Vrfs-rss3-dGVk-XpV7Q5 LookBackVG
Processing VG DTVG because of matching UUID KBJwfa-GO0R-rjWS-Vrfs-rss3-dGVk-XpV7Q5
Volume group "KBJwfa-GO0R-rjWS-Vrfs-rss3-dGVk-XpV7Q5" successfully renamed to "LookBackVG"
[root@ns3723990 /data]# lvscan
ACTIVE '/dev/LookBackVG/data' [25.35 TiB] inherit
[root@ns3723990 /data]# lvchange -ay /dev/LookBackVG/data
[root@ns3723990 /data]# lvscan
ACTIVE '/dev/LookBackVG/data' [25.35 TiB] inherit
[root@ns3723990 /data]#
开始修改LV名字
[root@ns3723990 /data]# lvrename /dev/LookBackVG/data datadir
Renamed "data" to "datadir" in volume group "LookBackVG"
[root@ns3723990 /data]# lvscan
ACTIVE '/dev/LookBackVG/datadir' [25.35 TiB] inherit
[root@ns3723990 /data]#
最后不要忘记修改fstab挂载配置文件
最最重要的一步,一定要编辑 vi /etc/fstab,删除或修改对应挂载信息
重启服务器 df -ht 查看有没有挂载