LVM

Howto add drive

fdisk -l # list all disk to see new disk
pvcreate /dev/sdc # create physical volume
lvmdiskscan -l # verify volumes
vgextend debian-vg /dev/sdc # extend an existing logical volume
vgs # verify volgroup
lvextend -l+100%FREE /dev/debian-vg/root # extend "root" logical volume
resize2fs -p /dev/debian-vg/root # enlarge filesystem
df -h # checks results

FilesDiagnosticPV

# Directories
/etc/lvm 
/etc/lvm/backup 
/etc/lvm/cache
/etc/lvm/archive 
/var/lock/lvm

# Files
/etc/lvm/lvm.conf
$HOME/.lvm

lvmdump
lvmdump -d <dir>
dmsetup [info|ls|status]

pvdisplay -v
pvs -v
pvs -a
pvs --segments (see the disk segments used)

pvs attributes are:
1. (a)llocatable
2. e(x)ported

Physical Volumes

Volume Groups

DisplayScanningCreatingExtendingReducingRemovingCheckingAttributesRenamingMetadataMergingSplittingImportingExportingBackupRestoringCloningEspecial

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Logical Volumes

DisplayScanningCreatingExtendingResizingRemovingMirroraddMirrordelMirrorStripesAttributesRenamingSnapshotting

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