Linux base LVM

Create LVM 1.

Create a physical volume

Partition (logical partition | primary partition) PVCREATE/DEV/VDB1 PVCREATE/DEV/VDB2/DEV/VDB3

PVs Pvdisplay

2. Create a volume group Vgcreate vgtest/dev/vdb1/dev/vdb2/dev/vdb3 VGS Vgdisplay

3

. Create a logical Volume Lvcreate-n lvtest-l 400M vgtes

LVS Lvdisplay

Lvcreate-n lvkevin-l vgtest-l KMG Specifies size by the number of blocks

Lvcreate-n lvmark-l 100%free Vgtest

4. Create File system Mount Mkfs.ext4/dev/vgtest/lv1

Mkfs.ext4/dev/mapper/vgtest-lv1

Mount/dev/vgtest/lv1/mnt

PE size custom vgcreate-s 8M vgl/dev/vdb5 vgchange-s 2M Vgcarol

Extended 1.lv expansion (corresponding to VG space enough) lvextend-l 500m/dev/vgweb/lvweb to 500M lvextend-l +300m/dev/vgweb/lvweb-Extended 3 10,

2. File system extension Ext Resize2fs/dev/mapper/vgweb-lvweb

XFS Xfs_growfs/web

3.VG extension vgextend vgweb/dev/vdb9 lvextend-l 1.5g/dev/vgweb/lv1

Resize2fs/dev/mapper/vgweb-lvweb shrinking

1. File system reduction XFS does not allow ext to umount/lvtest e2fsck-f/dev/mapper/vgweb-lv1

2. Resize2fs/dev/mapper/vgweb-lvweb 800M

   . LV Narrowing lvreduce-l 800m/dev/vgweb/lvweb lvreduce-l -300m/dev/vgweb/lvweb lvreduce-f-l-200m/dev/vgweb/lvweb

3. 3.VG Shrink vgreduce VGWEB/DEV/VDB9 Delete

4. 1. Uninstalling Umount

5. 2. Delete Lvlvremove-f/dev/vgcarol/lv1

6. 3. Delete Vgremove Vgweb

7. 4. Delete PVREMOVE/DEV/VDB9

8. 5. Delete Partition Fdisk D

9. 
   

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Linux base LVM