Trying to extend pve-data on 'local' but don't understand the message returned

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Gringo.Frenzy

New Member
Sep 11, 2013
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Hi all, I've added a second physical hdd to my proxmox server and I'm trying to use it to extend the existing 'local' storage device.
(e.g. I do not want to add a second storage device/node, just extend what is already there using LVM).

This is my current setup.
/dev/sdb is the new hdd.

Code: 
root@proxmox:~# lsblk
NAME                MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                   8:0    0 298.1G  0 disk
├─sda1                8:1    0     1M  0 part
├─sda2                8:2    0   510M  0 part /boot
└─sda3                8:3    0 297.6G  0 part
  ├─pve-root (dm-0) 253:0    0  74.5G  0 lvm  /
  ├─pve-swap (dm-1) 253:1    0     4G  0 lvm  [SWAP]
  └─pve-data (dm-2) 253:2    0 203.1G  0 lvm  /var/lib/vz
sdb                   8:16   0 465.8G  0 disk
└─sdb1                8:17   0 465.8G  0 part


I have performed the following steps, which all worked:

I have extended the 'pve' Volume Group using vgextend, but as you can see from the below, I don't think it is making use of the additional 465G space that has been added...

Code: 
root@proxmox:~# vgextend pve /dev/sdb1
root@proxmox:~# vgdisplay
  --- Volume group ---
  VG Name               pve
  System ID
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  7
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                3
  Open LV               3
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               763.35 GiB
  PE Size               4.00 MiB
  Total PE              195417
  Alloc PE / Size       72088 / 281.59 GiB
  Free  PE / Size       123329 / 481.75 GiB
  VG UUID               eUcGyo-8sNf-xBAE-BMJP-p3Rp-cOJo-8Okx1O

I did some searching on here and I found some responses saying that you need to also extend the pve-data LVM device using resize2fs.
So, I tried this, but I get the following message:

Code: 
root@proxmox:~# resize2fs /dev/mapper/pve-data
resize2fs 1.42.5 (29-Jul-2012)
The filesystem is already 53239808 blocks long.  Nothing to do!

And after running it, I used the
Code: 
df -h /var/lib/vz
command to check the new size and it's still only using 200G instead of the ~650G available to it.

Code: 
root@proxmox:~# df -h /var/lib/vz
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/pve-data  200G  6.6G  194G   4% /var/lib/vz

Can anyone explain why resize2fs isn't working for me? Thanks!

I do not have any data on the new disk, so happy to delete partitions etc.....whatever is necessary!
 
Hello Gringo.Frenzy

Using the sequence (note the line in red!)

Code: 
vgextend pve /dev/sdb1

[COLOR=#ff0000]lvextend -L +480G /dev/pve/data[/COLOR]

resize2fs /dev/mapper/pve-data

it should work

kind regards

Mr.Holmes
 
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