新磁盘如何做LVM
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格式化LV1并挂载 [root@localhost ~]# mkfs.ext3 /dev/vg1/lv1 ###将lv1格式化成ext3格式 mke2fs 1.39 (29-May-2006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 1921984 inodes, 3840000 blocks 192000 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=3934257152 118 block groups 32768 blocks per group, 32768 fragments per group 16288 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 21 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. [root@localhost ~]# mount /dev/vg1/lv1 /mnt/ ####将逻辑卷挂载到/mnt [root@localhost ~]# mount ###查看当前的挂在情况 /dev/sda3 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/sda1 on /boot type ext3 (rw) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) /dev/mapper/vg1-lv1 on /mnt type ext3 (rw) 扩大LV [root@localhost ~]# df -Th ####查看当前的分区挂载 Filesystem Type Size Used Avail Use% Mounted on /dev/sda3 ext3 19G 4.1G 14G 24% / /dev/sda1 ext3 190M 12M 169M 7% /boot tmpfs tmpfs 125M 0 125M 0% /dev/shm /dev/mapper/vg1-lv1 ext3 15G 165M 14G 2% /mnt Disk /dev/sdc: 42.9 GB, 42949672960 bytes 255 heads, 63 sectors/track, 5221 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdc1 1 366 2939863+ 8e Linux LVM [root@localhost ~]# vgdisplay #####查看卷组的状态 --- Volume group --- VG Name vg1 System ID …… Alloc PE / Size 3750 / 14.65 GB Free PE / Size 6487 / 25.34 GB VG UUID sgtFaV-Hd31-dCag-jPbq-50Ia-WOQa-Ccwo3x [root@localhost ~]# vgextend vg1 /dev/sdc1 #####将/dev/sdc1扩到卷组vg1中 /dev/cdrom: open failed: Read-only file system No physical volume label read from /dev/sdc1 Physical volume "/dev/sdc1" successfully created Volume group "vg1" successfully extended [root@localhost ~]# vgdisplay --- Volume group --- VG Name vg1 System ID Format lvm2 Metadata Areas 4 Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 1 Max PV 0 Cur PV 4 Act PV 4 VG Size 42.79 GB PE Size 4.00 MB Total PE 10954 Alloc PE / Size 3750 / 14.65 GB Free PE / Size 7204 / 28.14 GB VG UUID sgtFaV-Hd31-dCag-jPbq-50Ia-WOQa-Ccwo3x [root@localhost ~]# lvextend -L +2000M /dev/vg1/lv1 ####对lv进行扩容 /dev/cdrom: open failed: Read-only file system Extending logical volume lv1 to 16.60 GB Logical volume lv1 successfully resized （编辑：佛山站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
