Storage and LVM

You will be able to

• Identify disks and free space, then add a GPT partition without touching existing data.
• Build physical volumes, a volume group with a chosen extent size, and logical volumes sized in megabytes or extents.
• Extend a logical volume and its file system while mounted, adding a disk to the group first when needed.
• Create swap on a partition, a logical volume or a file, and keep it active across reboots.

Lessons

1. 01Disks and GPT partitionsFind out what storage exists and what is free, then add partitions with fdisk or parted without touching data in use.lsblkblkidfdisk -lfdiskpartedpartprobe0/5 exercises
2. 02Logical volumes: PV, VG and LVTurn partitions into physical volumes, pool them into a volume group with a chosen extent size, and carve out logical volumes.pvcreatevgcreatelvcreatepvsvgslvs0/5 exercises
3. 03Growing volumes and adding swapExtend a logical volume and its file system while it is mounted, add a disk to a group when it is full, and create swap that survives a reboot.lvextendlvextend -rvgextendxfs_growfsresize2fsmkswap0/5 exercises