Comments on: How To Create Volume Group And File System With LVM2 In Linux? http://www.walkernews.net/2009/03/07/how-to-create-volume-group-and-file-system-with-lvm2-in-linux/ A capsule of walker's experience in life... Mon, 06 Feb 2012 19:09:42 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Walker http://www.walkernews.net/2009/03/07/how-to-create-volume-group-and-file-system-with-lvm2-in-linux/#comment-10804 Walker Tue, 12 Oct 2010 15:01:32 +0000 http://www.walkernews.net/?p=2046#comment-10804 I am not comfortable to give a solution until I tested it and confirm it works :-( I am not comfortable to give a solution until I tested it and confirm it works :-(

]]> By: gcmartin http://www.walkernews.net/2009/03/07/how-to-create-volume-group-and-file-system-with-lvm2-in-linux/#comment-10794 gcmartin Mon, 11 Oct 2010 19:09:50 +0000 http://www.walkernews.net/?p=2046#comment-10794 Hi Walker....Great "2" articles (I read thru both on LVM) I have a special case that I would like to ask you to comment on. I have a single VG that has 3 LVs contained in a single PV. The HDD is 500GB that is partitioned into 2 partitions; /dev/sda2 is an LVM. 512MB is /dev/sda1 and the VG takes the remainder of the drive (sda2). I want to free up some space outside of the LVM so that I have 24GB available at the end of the HDD. To make room, I want to reduce the size of one of the LV and reduce the size of the partition respectively. And, because there are 3 LVs, I am unsure how to proceed. Here's my scans that my help understand my plight and may help answer the correct sequence of steps I should follow to accomplish a reduction in the VG and HDD. Thanks in advance for any help. <pre> #fdisk -l Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sda1 * 1 66 524288 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 66 60801 487859712 8e Linux LVM # pvscan PV /dev/sda2 VG pve lvm2 [465.26 GB / 4.00 GB free] Total: 1 [465.26 GB] / in use: 1 [465.26 GB] / in no VG: 0 [0 ] # vgscan Reading all physical volumes. This may take a while... Found volume group "pve" using metadata type lvm2 # lvscan inactive '/dev/pve/swap' [4.00 GB] inherit inactive '/dev/pve/root' [96.00 GB] inherit inactive '/dev/pve/data' [361.26 GB] inherit </pre> I can get you any additional displays if need. Hi Walker….Great “2″ articles (I read thru both on LVM)

I have a special case that I would like to ask you to comment on.

I have a single VG that has 3 LVs contained in a single PV. The HDD is 500GB that is partitioned into 2 partitions; /dev/sda2 is an LVM. 512MB is /dev/sda1 and the VG takes the remainder of the drive (sda2).

I want to free up some space outside of the LVM so that I have 24GB available at the end of the HDD. To make room, I want to reduce the size of one of the LV and reduce the size of the partition respectively. And, because there are 3 LVs, I am unsure how to proceed.

Here’s my scans that my help understand my plight and may help answer the correct sequence of steps I should follow to accomplish a reduction in the VG and HDD.
Thanks in advance for any help.

#fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000

   Device Boot  Start     End      Blocks   Id  System
/dev/sda1   *       1      66      524288   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2          66   60801   487859712   8e  Linux LVM

# pvscan
PV /dev/sda2   VG pve   lvm2 [465.26 GB / 4.00 GB free]
Total: 1 [465.26 GB] / in use: 1 [465.26 GB] / in no VG: 0 [0   ]
# vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group "pve" using metadata type lvm2
# lvscan
  inactive          '/dev/pve/swap' [4.00 GB] inherit
  inactive          '/dev/pve/root' [96.00 GB] inherit
  inactive          '/dev/pve/data' [361.26 GB] inherit

I can get you any additional displays if need.

]]> By: Mohammed ali http://www.walkernews.net/2009/03/07/how-to-create-volume-group-and-file-system-with-lvm2-in-linux/#comment-10029 Mohammed ali Fri, 18 Jun 2010 14:38:28 +0000 http://www.walkernews.net/?p=2046#comment-10029 Hello, Thank you for this article : I was always afraid of using LVM but your article showed it was easy. thank you again for the good work. cheers Hello,
Thank you for this article : I was always afraid of using LVM but your article showed it was easy.
thank you again for the good work.
cheers

]]> By: ElMehdi http://www.walkernews.net/2009/03/07/how-to-create-volume-group-and-file-system-with-lvm2-in-linux/#comment-9533 ElMehdi Sun, 18 Apr 2010 20:25:56 +0000 http://www.walkernews.net/?p=2046#comment-9533 Hello, Thank you for this article : I was always afraid of using LVM but your article showed it was easy. thank you again for the good work. cheers Hello,
Thank you for this article : I was always afraid of using LVM but your article showed it was easy.
thank you again for the good work.
cheers

]]> By: Khalifa http://www.walkernews.net/2009/03/07/how-to-create-volume-group-and-file-system-with-lvm2-in-linux/#comment-8218 Khalifa Tue, 06 Oct 2009 17:43:48 +0000 http://www.walkernews.net/?p=2046#comment-8218 Pros work, i like that way .... keep it up and try to put an illustrated installation process Pros work, i like that way …. keep it up and try to put an illustrated installation process

]]> By: johnny http://www.walkernews.net/2009/03/07/how-to-create-volume-group-and-file-system-with-lvm2-in-linux/#comment-7707 johnny Mon, 06 Jul 2009 20:30:36 +0000 http://www.walkernews.net/?p=2046#comment-7707 Excellent. Exactly what I was looking for. Thanks! Excellent. Exactly what I was looking for. Thanks!

]]> By: egorgry http://www.walkernews.net/2009/03/07/how-to-create-volume-group-and-file-system-with-lvm2-in-linux/#comment-6943 egorgry Tue, 10 Mar 2009 20:48:12 +0000 http://www.walkernews.net/?p=2046#comment-6943 Good straight forward article. I'm amazed how many admins don't use the -m switch with mkfs. Good straight forward article. I’m amazed how many admins don’t use the -m switch with mkfs.

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