Add new LVM
fdisk /dev/sdb g x pvcreate /dev/sdb1 vgcreate new /dev/sdb1 lvcreate --name vol -l 100%FREE new # create ext4 mkfs.ext4 /dev/vg_newlvm/centos7_newvol # create xfs mkfs.xfs /dev/new/vol #mount to /opt mount /dev/new/vol /opt # vi /etc/fstab # ext4 /dev/mapper/new-vol /opt ext4 defaults 0 0 # xfs /dev/mapper/new-vol /opt xfs defaults 0 0
Extend LVM
############## recheck rescan HDD echo "- - -" > /sys/class/scsi_host/host#/scan fdisk -l tail -f /var/log/message fdisk /dev/sdc g x pvcreate /dev/sdc1 vgextend vg /dev/sdc1 vgdisplay lvextend -l +4607 /dev/vg/vol # ext4 resize2fs /dev/vg/vol # xfs xfs_growfs /dev/vg/vol
For Cloud Extend lvm
fdisk /dev/vdb n p 1 [enter] [enter] t 8e w pvcreate /dev/vdb1 # Centos7 #xfs vgextend centos /dev/vdb1 lvextend -l +100%FREE /dev/centos/root xfs_growfs /dev/centos/root # Centos6 # ext4 vgextend VolGroup /dev/vdb1 lvextend -l +100%FREE /dev/VolGroup/lv_root resize2fs /dev/VolGroup/lv_root ### Delete vg vgdisplay vgremove my_volume_group
parted -a optimal /dev/sda mkpart primary 0% 4096MB
align aligned alignment 4K for SSD
