linux系统下创建lvm挂载到指定目录的操作步骤
1、背景
在企业中有时我们为方便安装软件、数据的管理,需要把安装软件、数据放到固定目录下,磁盘满了方便扩展,这里假如需要一个/data目录存放数据,并单独进行挂载。
2、操作步骤
2.1 划分磁盘
2.2创建PV
[root@centos-6~]#pvcreate/dev/sdb1 Physicalvolume"/dev/sdb1"successfullycreated
扫描系统PV可以使用pvscan查看新建的PV
[root@centos-6~]#pvscan PV/dev/sda2VGVolGrouplvm2[19.51GiB/0free] PV/dev/sdb1lvm2[10.00GiB] Total:2[29.51GiB]/inuse:1[19.51GiB]/innoVG:1[10.00GiB]
2.3创建VG
[root@centos-6~]#vgcreatevgtest/dev/sdb1 Volumegroup"vgtest"successfullycreated
注释:vgtest为VG的名称
扫描vg
[root@centos-6~]#vgscan Readingallphysicalvolumes.Thismaytakeawhile... Foundvolumegroup"vgtest"usingmetadatatypelvm2 Foundvolumegroup"VolGroup"usingmetadatatypelvm2
查看vg
[root@centos-6~]#vgdisplay ---Volumegroup--- VGNamevgtest SystemID Formatlvm2 MetadataAreas1 MetadataSequenceNo1 VGAccessread/write VGStatusresizable MAXLV0 CurLV0 OpenLV0 MaxPV0 CurPV1 ActPV1 VGSize10.00GiB PESize4.00MiB TotalPE2560 AllocPE/Size0/0 FreePE/Size2560/10.00GiB VGUUID59Z2ML-CEzB-PivW-zNq9-2kbv-hscJ-drFdR9 ---Volumegroup--- VGNameVolGroup SystemID Formatlvm2 MetadataAreas1 MetadataSequenceNo3 VGAccessread/write VGStatusresizable MAXLV0 CurLV2 OpenLV2 MaxPV0 CurPV1 ActPV1 VGSize19.51GiB PESize4.00MiB TotalPE4994 AllocPE/Size4994/19.51GiB FreePE/Size0/0 VGUUIDUPJDXo-8RjG-muVj-nVnt-hjXI-aZVv-uGGc2x
2.4创建LV
[root@centos-6~]#lvcreate-l2560-nlvdatavgtest Logicalvolume"lvdata"created.
2.5格式化创建的LV
[root@centos-6~]#mkfs-text4/dev/vgtest/lvdata mke2fs1.41.12(17-May-2010) 文件系统标签= 操作系统:Linux 块大小=4096(log=2) 分块大小=4096(log=2) Stride=0blocks,Stripewidth=0blocks 655360inodes,2621440blocks 131072blocks(5.00%)reservedforthesuperuser 第一个数据块=0 Maximumfilesystemblocks=2684354560 80blockgroups 32768blockspergroup,32768fragmentspergroup 8192inodespergroup Superblockbackupsstoredonblocks: 32768,98304,163840,229376,294912,819200,884736,1605632
正在写入inode表:完成
Creatingjournal(32768blocks):完成 Writingsuperblocksandfilesystemaccountinginformation:完成 Thisfilesystemwillbeautomaticallycheckedevery39mountsor 180days,whichevercomesfirst.Usetune2fs-cor-itooverride.
2.6创建目录并挂载
创建目录:
[root@centos-6~]#mkdir-p/data
挂载目录
[root@centos-6~]#mount/dev/vgtest/lvdata/data
查看
[root@centos-6~]#df-h FilesystemSizeUsedAvailUse%Mountedon /dev/mapper/VolGroup-lv_root18G4.9G12G30%/ tmpfs125M72K125M1%/dev/shm /dev/sda1477M37M416M9%/boot /dev/mapper/vgtest-lvdata9.8G23M9.2G1%/data
2.7设置开机挂载
[root@centos-6~]#vi/etc/fstab # #/etc/fstab #CreatedbyanacondaonSatFeb300:44:142018 # #Accessiblefilesystems,byreference,aremaintainedunder'/dev/disk' #Seemanpagesfstab(5),findfs(8),mount(8)and/orblkid(8)formoreinfo # /dev/mapper/VolGroup-lv_root/ext4defaults11 UUID=49120546-3d8d-4b2e-8559-448613dc072a/bootext4defaults12 /dev/mapper/VolGroup-lv_swapswapswapdefaults00 tmpfs/dev/shmtmpfsdefaults00 devpts/dev/ptsdevptsgid=5,mode=62000 sysfs/syssysfsdefaults00 proc/procprocdefaults00 /dev/mapper/vgtest-lvdata/dataext4defaults00
总结
以上所述是小编给大家介绍的linux系统下创建lvm挂载到指定目录的操作步骤,希望对大家有所帮助,如果大家有任何疑问欢迎给我留言,小编会及时回复大家的!