102.1 Design Hard Disk Layout (LVM Basics and Swap) Flashcards
LVM - Logical Volume Manager
allows creation of ‘groups’ of disks or partitions that can be assembled into a single or multiple filesystems
LVM
LVM - Logical Volume Manager
the basic starting point or unit of storage that corresponds to a disk or partition on the system
Physical Volume
PV
LVM - Logical Volume Manager
local PV
/dev/sdb1
LVM - Logical Volume Manager
SAN (storage area network) block
SAN
LVM - Logical Volume Manager
combination of one or more PVs to create a pool of available storage
Volume Group
VG
LVM - Logical Volume Manager
VG - PE
physical extants
LVM - Logical Volume Manager
pieces that allow easy allocation of
storage from a pv
LVM - Logical Volume Manager
volume group can be divided into one or more logical volumes
Logical Volume
LVM - Logical Volume Manager
each logical volume can be formatted with a particular filesystem type and then
mounted
LVM - Logical Volume Manager
LVM advantage
Flexible
increase size of LV by resizing
pulling space from VG
LVM - Logical Volume Manager
point in time backup of state of any LV that can be used for backup, restore, movement etc without affection the live logical volume
snapshot
LVM - Logical Volume Manager
virtual memory
Swap
LVM - Logical Volume Manager
dedicated partition formatted as
swap space
LVM - Logical Volume Manager
specially created file that is used on filesystem as swap space for the system
swap file
