Linux Partition & RAID Administration

Meta Device RAID 

/sbin/mdadm --create --verbose /dev/md0 --level=5 --raid-devices=3 /dev/sdb1 /dev/sda1 /dev/sdf1


LVM

Initialize Disk
pvcreate /dev/md0

Create Volume Group
vgcreate -s 32M lvm_group /dev/md0 /dev/md1

Create Logical Volume
lvcreate -L 200GB lvm_group1 -n lv1

Check Logical Volume
lvdisplay lvm_group/lv1

Make File System
mkfs.ext4 /dev/lvm_group1/lv1

Mount
mount /dev/lvm_group1/lv1 /data/mysql/

Linux Disk & Partition Checking

• fidsk -l [/dev/sde]
• parted -l
• df -h
• sfdisk -l [-uM]
• cfdisk /dev/sdb
• lsblk
• blkid

Logical Volume:

• pvscan
• pvdisplay
• vgdisplay
• lvdisplay

Meta Devices:

• mdadm --detail /dev/md0