LVM - Revision history

Porcelinux at 20:42, 20 January 2025

2025-01-20T20:42:03Z

← Older revision		Revision as of 20:42, 20 January 2025
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	= Info =		= Info =
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	*; Logical Volumes		*; Logical Volumes
	lvs		lvs


	= Phisical Volumes (PV) =		= Phisical Volumes (PV) =

	pvs		pvs
	PV VG Fmt Attr PSize PFree		PV VG Fmt Attr PSize PFree
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	== remove a disk from PV ==		== remove a disk from PV ==

	vgreduce vg_1 /dev/sdb		vgreduce vg_1 /dev/sdb
	Removed "/dev/sdb" from volume group "vg_1"		Removed "/dev/sdb" from volume group "vg_1"
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	vgremove vg_1		vgremove vg_1
	Volume group "vg_1" successfully removed		Volume group "vg_1" successfully removed

			== xx is using an old PV header, modify the VG to update. ==
			appears when moving/updating from RHEL5 to 6 then RHEL6 to 7 and to 8
			* update PV header version
			vgck --updatemetadata xx
			* check PV header version
			pvck --dump headers /dev/<device

	= Resizing out from Disk->PV->LV->Partition =		= Resizing out from Disk->PV->LV->Partition =

	* After resizing a physical drive this commands will claim the space gained to the file system.		* After resizing a physical drive this commands will claim the space gained to the file system.
	*resizing LVM linux partition to the new disk boundaries		*resizing LVM linux partition to the new disk boundaries
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	df -hT		df -hT

	~~== xx is using an old PV header, modify the VG to update. ==~~

	~~vgck --updatemetadata xx~~

	= Logical Volumes =		= Logical Volumes =

2025-01-19T09:30:48Z

← Older revision		Revision as of 09:30, 19 January 2025
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	df -hT		df -hT

			== xx is using an old PV header, modify the VG to update. ==

			vgck --updatemetadata xx

	= Logical Volumes =		= Logical Volumes =
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	lv_root vg_1 -wi-ao-- 50.00g		lv_root vg_1 -wi-ao-- 50.00g
	lv_swap vg_1 -wi-ao-- 5.84g		lv_swap vg_1 -wi-ao-- 5.84g

	~~== xx is using an old PV header, modify the VG to update. ==~~

	~~vgck --updatemetadata xx~~

2025-01-19T09:30:16Z

xx is using an old PV header, modify the VG to update.

← Older revision		Revision as of 09:30, 19 January 2025
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	lv_swap vg_1 -wi-ao-- 5.84g		lv_swap vg_1 -wi-ao-- 5.84g

	=== xx is using an old PV header, modify the VG to update. ===		== xx is using an old PV header, modify the VG to update. ==

	vgck --updatemetadata xx		vgck --updatemetadata xx

2025-01-19T09:30:01Z

← Older revision		Revision as of 09:30, 19 January 2025
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	lv_root vg_1 -wi-ao-- 50.00g		lv_root vg_1 -wi-ao-- 50.00g
	lv_swap vg_1 -wi-ao-- 5.84g		lv_swap vg_1 -wi-ao-- 5.84g

			=== xx is using an old PV header, modify the VG to update. ===

			vgck --updatemetadata xx

2022-11-17T17:22:57Z

Resizing out from Disk->PV->LV->Partition

← Older revision		Revision as of 17:22, 17 November 2022
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	*resizing LVM linux partition to the new disk boundaries		*resizing LVM linux partition to the new disk boundaries
	pvresize /dev/md1		pvresize /dev/md1

			pvresize --setphysicalvolumesize (size here) /dev/sda5

	* adding 100G		* adding 100G
	lvextend -L+100G /dev/mapper/vg0-var		lvextend -L+100G /dev/mapper/vg0-var

2022-11-17T17:22:06Z

Phisical Volumes (PV)

← Older revision		Revision as of 17:22, 17 November 2022
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	/dev/sda vg_1 lvm2 a-- 930.82g 0		/dev/sda vg_1 lvm2 a-- 930.82g 0
	/dev/sdb vg_1 lvm2 a-- 931.31g 931.31g		/dev/sdb vg_1 lvm2 a-- 931.31g 931.31g
			* Phisical to Virtual
			lvs -a -o +devices
			* Segmentation
			pvs -v --segments /dev/sdb1
			PV VG Fmt Attr PSize PFree Start SSize LV Start Type PE Ranges
			/dev/sdb1 server03-vg lvm2 a-- 58.35g 40.35g 0 4608 root 0 linear /dev/sdb1:0-4607
			/dev/sdb1 server03-vg lvm2 a-- 58.35g 40.35g 4608 10330 0 free

	~~lvs -a -o +devices~~

	== add a disk to a PV ==		== add a disk to a PV ==

2017-04-06T20:18:34Z

2017-04-06T20:16:59Z

← Older revision		Revision as of 20:16, 6 April 2017
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	= ~~from~~ command line =		= Get info command line =

	~~pvdisplay~~		== Phisical Volumes ==
			pvs
	~~lvremove~~

	~~lvdisplay~~

			== Volume Groups ==
			vgs
			== Logical Volume ==
			lvs

	=~~= see the~~ PV~~'s =~~=		= Phisical Volumes (PV) =

	pvs		pvs
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	Volume group "vg_1" successfully removed		Volume group "vg_1" successfully removed

			= Resizing out from Disk->PV->LV->Partition =

			* After resizing a physical drive this commands will claim the space gained to the file system.
			*resizing LVM linux partition to the new disk boundaries
			pvresize /dev/md1
			* adding 100G
			lvextend -L+100G /dev/mapper/vg0-var
			* ext4 resizing command
			resize2fs /dev/mapper/vg0-var

			df -hT

			= Logical Volumes =
	== create a mirror volume ==		== create a mirror volume ==

2013-07-11T10:31:48Z

create a mirror from existing and mounted volume

← Older revision		Revision as of 10:31, 11 July 2013
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	== create a mirror from existing and mounted volume ==		== create a mirror from existing and mounted volume ==

	lvconvert -m1 ~~vg_netmon3~~/lv_home		lvconvert -m1 vg_1/lv_home

	* then we check the result:		* then we check the result:

2013-07-11T09:11:37Z

@@ Line 34: / Line 34: @@
   Volume group "vg_1" successfully removed
-== create a mirror ==
+== create a mirror volume ==
   lvcreate -L 931g vg_1 -m 1 vg_1