Linux创建LVM磁盘分区
一、创建LVM格式分区
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ACES01:~ # ls /dev/sdb /dev/sdb ACES01:~ # fdisk /dev/sdb Welcome to fdisk (util-linux 2.28). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Device does not contain a recognized partition table. Created a new DOS disklabel with disk identifier 0xedea1b84. Command (m for help): n Partition type p primary (0 primary, 0 extended, 4 free) e extended (container for logical partitions) Select (default p): p Partition number (1-4, default 1): 1 First sector (2048-33554431, default 2048): Last sector, +sectors or +size{K,M,G,T,P} (2048-33554431, default 33554431): 33554431 Created a new partition 1 of type 'Linux' and of size 16 GiB. Command (m for help): t Selected partition 1 Partition type (type L to list all types): 8e Changed type of partition 'Linux' to 'Linux LVM'. Command (m for help): w The partition table has been altered. Calling ioctl() to re-read partition table. Syncing disks. |
二、创建LVM卷
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ACES01:~ # ls /dev/sdb1 /dev/sdb1 ACES01:~ # pvcreate /dev/sdb1 Physical volume "/dev/sdb1" successfully created ACES01:~ # pvs PV VG Fmt Attr PSize PFree /dev/sda1 system lvm2 a-- 100.00g 38.00g /dev/sdb1 lvm2 --- 16.00g 16.00g ACES01:~ # vgcreate vgshare01 /dev/sdb1 Volume group "vgshare01" successfully created ACES01:~ # vgs VG #PV #LV #SN Attr VSize VFree system 1 2 0 wz--n- 100.00g 38.00g vgshare01 1 0 0 wz--n- 16.00g 16.00g ACES01:~ # lvcreate -n lvshare01 -l 100%FREE vgshare01 Logical volume "lvshare01" created. ACES01:~ # lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert root system -wi-ao---- 60.00g swap system -wi-ao---- 2.00g lvshare01 vgshare01 -wi-a----- 16.00g |
三、格式化并挂载lv卷
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ACES01:~ # mkfs.ext4 /dev/vgshare01/lvshare01 mke2fs 1.42.11 (09-Jul-2014) Creating filesystem with 4193280 4k blocks and 1048576 inodes Filesystem UUID: a823269d-656d-4e66-9c4e-4eac54c7b488 Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done ACES01:~ # mkdir /share ACES01:~ # mount /dev/vgshare01/lvshare01 /share/ ACES01:~ # cd /share/ ACES01:/share # ls lost+found |
2019-1-28 12:44:22
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作者：龙魂
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