Shulou(Shulou.com)06/02 Report--

LVM creation steps

1. Create Partition

two。 Create PV

3. Create VG

4. Create LV

5. Formatting and mounting

Create Partition

Use partition tools (such as fdisk, etc.) to create a LVM partition, but identify the partition as partition type 8e of LVM.

[root@kauai] # fdisk-l. Device Boot Start End Blocks Id System/dev/sdb1 2048 20971519 10484736 5 Extended/dev/sdb5 4096 2101247 1048576 8e Linux LVM/dev/sdb6 2103296 4200447 1048576 8e Linux LVM create PV create PV [root@kauai ~] # pvcreate / dev/sdb5 # convert each partition to PV Physical volume "/ dev/sdb5" successfully created [root@kauai ~ ] # pvcreate / dev/sdb6 Physical volume "/ dev/sdb6" successfully created View and verify [root@kauai ~] # pvdisplay. Create VG create VG [root@kauai ~] # vgcreate-s 16m vg01 / dev/sdb5 / dev/sdb6 / dev/sdb7# create a VG group named vg01, and modify PE to 16m Volume group "vg01" successfully created to view and verify

Note: LVM defaults to the PE block of 4MB, so the default LVM VG will have 4M*65534/ (1024M/G) = 256g.

Create LV

5.1 create LVS [/ erji]

[root@kauai] # lvcreate-L 1g-n lv01 vg01 Logical volume "lv01" created. Check and verify [root@kauai ~] # lvdisplay format and mount format [root@kauai ~] # mkfs.xfs / dev/vg01/lv01 # format to the corresponding format meta-data=/dev/vg01/lv01 isize=256 agcount=4, agsize=65536 blks = sectsz=512 attr=2 Projid32bit=1 = crc=0 finobt=0data = bsize=4096 blocks=262144, imaxpct=25 = sunit=0 swidth=0 blksnaming = version 2 bsize=4096 ascii-ci=0 ftype=0log = internal log bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1realtime = none extsz=4096 blocks=0 Rtextents=0 mount [root@kauai ~] # mkdir / root/mylv01 # create a directory for mounting [root@kauai ~] # mount / dev/vg01/lv01 / root/mylv01/ # mount to the corresponding directory [root@kauai ~] # df-h # View and verify Filesystem Size Used Avail Use% Mounted on... / dev/mapper/vg01-lv01 1014M 33M 982M 4% / root/mylv01 boot mount [root@kauai] # vi / etc/fstab/dev/vg01/lv01 / root/mylv01 xfs defaults 0 0 # modified to boot mount

Original address: https://www.linuxprobe.com/lvm-create.html

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