Linux下逻辑卷创建与管理

用虚拟机加一块硬盘后，查看硬盘状况，使用fdisk-l命令：[root@jerrybj ~]# fdisk -lDisk /dev/sda: 21.4 GB, 21474836480 bytes255 heads, 63 sectors/track, 2610 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDevice Boot Start End Blocks Id System/dev/sda1 * 1 13 104391 83 Linux/dev/sda2 14 2610 20860402+ 8e Linux LVMDisk /dev/sdb: 34.3 GB, 34359738368 bytes255 heads, 63 sectors/track, 4177 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/sdb doesn"t contain a valid partition table其中/dev/sdb是新添加的，一会拿来做逻辑卷。下面继续添加partition：[root@jerrybj ~]# fdisk /dev/sdbCommand （m for help）: nCommand action e extended p primary partition （1-4）pPartition number （1-4）: 1First cylinder （1-4177, default 1）:Using default value 1Last cylinder or +size or +sizeM or +sizeK （1-4177, default4177）:Using default value 4177Command （m for help）: pDisk /dev/sdb: 34.3 GB, 34359738368 bytes255 heads, 63 sectors/track, 4177 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/sdb1 1 4177 33551721 83 LinuxCommand （m for help）: wThe partition table has been altered！Calling ioctl（） to re-read partition table.Syncing disks.现在我把linux类型分成LinuxLVM类型。[root@jerrybj ~]# fdisk /dev/sdbCommand （m for help）: tHex code （type L to list codes）: L。。。Hex code （type L to list codes）: 8eChanged system type of partition 1 to 8e （Linux LVM）Command （m for help）: w下面创建pv、vg、lv[root@jerrybj ~]# pvpvchange pvcreate pvmove pvresize pvscan pvck pvdisplay pvremove pvs pv.sh [root@jerrybj ~]# pvcreate /dev/sdb1 Physical volume"/dev/sdb1" successfully created然后创建vg[root@jerrybj ~]# vgvgcfgbackup vgconvert vgextend vgmknodes vgsvgcfgrestore vgcreate vgimport vgreduce vgscanvgchange vgdisplay vgimportclone vgremove vgsplitvgck vgexport vgmerge vgrename[root@jerrybj ~]# vgcreate datavg /dev/sdb1 Volume group"datavg" successfully created创建lv[root@jerrybj ~]# lvlvchange lvdisplay lvmchange lvmsadc lvreduce lvresizelvconvert lvextend lvmdiskscan lvmsar lvremove lvslvcreate lvm lvmdump lvm.static lvrename lvscan[root@jerrybj ~]# lvcreate -n lv_data1 -L 15g datavg Logical volume"lv_data1" created[root@jerrybj ~]# lvcreate -n lv_dsk1 -L 4g datavg Logical volume"lv_dsk1" created[root@jerrybj ~]# lvcreate -n lv_dsk2 -L 4g datavg Logical volume"lv_dsk2" created[root@jerrybj ~]# lvcreate -n lv_dsk3 -L 4g datavg Logical volume"lv_dsk3" created[root@jerrybj ~]# lvcreate -n lv_dsk4 -L 4g datavg Logical volume"lv_dsk4" created接下来格式化：[root@jerrybj ~]# mkfs.ext3 /dev/datavg/lv_data1[root@jerrybj ~]# mkfs.ext3 /dev/datavg/lv_dsk1[root@jerrybj ~]# mkfs.ext3 /dev/datavg/lv_dsk2[root@jerrybj ~]# mkfs.ext3 /dev/datavg/lv_dsk3[root@jerrybj ~]# mkfs.ext3 /dev/datavg/lv_dsk4下面创建目录：[root@jerrybj ~]# mkdir /u01 /dsk1 /dsk2 /dsk3 /dsk4下面开机挂载：[root@jerrybj ~]# vi /etc/fstab末尾添加如下内容：/dev/datavg/lv_data1 /u01 ext3 defaults 0 0/dev/datavg/lv_dsk1 /dsk1 ext3 defaults 0 0/dev/datavg/lv_dsk2 /dsk2 ext3 defaults 0 0/dev/datavg/lv_dsk3 /dsk3 ext3 defaults 0 0/dev/datavg/lv_dsk4 /dsk4 ext3 defaults 0 0 [root@jerrybj ~]# mount /u01[root@jerrybj ~]# mount /dsk1[root@jerrybj ~]# mount /dsk2[root@jerrybj ~]# mount /dsk3[root@jerrybj ~]# mount /dsk4大功告成！浅谈Linux 的grep命令与正则表达式Linux虚拟终端命令Screen用法详解相关资讯 Linux逻辑卷 Linux创建逻辑卷

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