Linux Disk Management using Standard(fdisk) & LVM

Linux Disk Management using Standard(fdisk) & LVM
Create partition standard ( fdisk )
New HDD : Blank => FDISK /LVM = 4 Partition
=> parition:
- Primary: OS, Data , have limit can use 4 partition => MBR-BIOS
- Extend: Logical partition: DATA : can use 126 partition => GPT-UEFI
=> HDD: 100GB
-60GB = Data /dev/sdb1 = first Primary partition
#fdisk /dev/sdb
m = help
n = create new primary partition
p = primary
w = save
-40GB = backup /dev/sdb2 = Second Primary partition

1/ use fdisk : 1/ add HDD 1 new in VM
2/ fdisk -l view partiotion => can view HDD is HDD raw (rol)
- cd /dev
- ls
- reboot sign in
- cd /dev or ll /dev/sdb
- fdisk /dev/sdb
- m
Command (m for help)
- n enter
select (defult p) :
- p
- enter
- enter
command (m for help): m
- w
- ls /dev
- view partition : fdisk -l
បន្ទាប់ពី create parition ហើយមិនអាច copy file ចូលបានទេ ត្រូវ format សិន
- mkfs.xfs /dev/sdb1
- fdisk -l : view partition ប្រើ sysetm អី ( linux)
- mkdir /mnt/drive1
- mount /dev/sdb1 /mnt/drive1 ( mount drive)
- cd /
- cat > test.txt -> write testing hdd
- cp test.txt /mnt/drive1/
- ll /mnt/drive1/
view sdb HDD និងមាន Partition ប៉ុន្មាន ?
- fdisk -l /dev/sdb
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Create partition LVM

1/ add new disk ( add disk new in VMware )
pvcreate /dev/sdc
yum -y -t install lvm* ( if os centos don't have lvm need install it )
yum list installed | grep lvm
yum -y install lvm2.x86_64
1/ pvcreate /dev/sdc ( Create physical volume )
2/ vgcreate ABC /dev/sdc ( create volume group )
3/lvcreate -L 5G -n lv1_disk1 ABC ( create logical volume ABC is name volume group ) )
lvcreate -L 10G -n lv2_disk2 ABC
- ls /dev
- cd /dev/ABC
- ll

4/ mkfs.xfs /dev/ABC/lv1_disk1 ( format volume with file system )
mkfs.xfs /dev/ABC/lv2_disk2
- mkdir /mnt/lvm_disk1 ( create drive mount )
- mkdir /mnt/lvm_disk2
5/ mount /dev/ABC/lv1_disk1 /mnt/lvm_disk1 ( Mount volume to directory )
- mount /dev/ABC/lv2_disk2 /mnt/lvm_disk2
- cd /mnt/lvm_disk1
- ll
- cat > file.txt
testing lvm ( ctrl+D = save )
- ll
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Linux Disk Management using Standard(fdisk) & LVM

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