Additional HDD 3TB recognized as 2 TB. [Solved]

iT!T

Member
Jun 27, 2019
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Hi,
I'm running Proxmox on HP 800 G1 SFF. Recently i added additional HDD HGST 3TB. I tried to add it to my server following this tutorial https://bit.ly/2kMr5uV , but Proxmox recognised it as 2TB only, can anyone help me with that?
 
2 TB (or 2.3 TB) is a magic number for storage. Some older controllers are not able to handle such big disks. I encountered this myself with older HP(E) hardware raid controllers and had to replace it with a newer one. Maybe this is also the case for your machine.
 
Can you also please post the output of lsblk?

Here it is.

Code:
NAME                         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                            8:0    0 223.6G  0 disk
├─sda1                         8:1    0  1007K  0 part
├─sda2                         8:2    0   512M  0 part /boot/efi
└─sda3                         8:3    0 223.1G  0 part
  ├─pve-swap                 253:0    0     8G  0 lvm  [SWAP]
  ├─pve-root                 253:1    0  55.8G  0 lvm  /
  ├─pve-data_tmeta           253:2    0   1.4G  0 lvm 
  │ └─pve-data-tpool         253:4    0 140.5G  0 lvm 
  │   ├─pve-data             253:5    0 140.5G  0 lvm 
  │   ├─pve-vm--100--disk--0 253:6    0    80G  0 lvm 
  │   ├─pve-vm--104--disk--0 253:7    0    22G  0 lvm 
  │   ├─pve-vm--105--disk--0 253:8    0     8G  0 lvm 
  │   ├─pve-vm--106--disk--0 253:9    0     4M  0 lvm 
  │   ├─pve-vm--106--disk--1 253:10   0    32G  0 lvm 
  │   ├─pve-vm--101--disk--0 253:11   0     8G  0 lvm 
  │   └─pve-vm--102--disk--0 253:12   0     4G  0 lvm 
  └─pve-data_tdata           253:3    0 140.5G  0 lvm 
    └─pve-data-tpool         253:4    0 140.5G  0 lvm 
      ├─pve-data             253:5    0 140.5G  0 lvm 
      ├─pve-vm--100--disk--0 253:6    0    80G  0 lvm 
      ├─pve-vm--104--disk--0 253:7    0    22G  0 lvm 
      ├─pve-vm--105--disk--0 253:8    0     8G  0 lvm 
      ├─pve-vm--106--disk--0 253:9    0     4M  0 lvm 
      ├─pve-vm--106--disk--1 253:10   0    32G  0 lvm 
      ├─pve-vm--101--disk--0 253:11   0     8G  0 lvm 
      └─pve-vm--102--disk--0 253:12   0     4G  0 lvm 
sdb                            8:16   0   2.7T  0 disk
└─sdb1                         8:17   0     2T  0 part
sr0                           11:0    1  1024M  0 rom
 
Your probably formating with MBR, your need to set the partition table to GPT, then you should have no issue creating the full 3TB partition.
 
Your probably formating with MBR, your need to set the partition table to GPT, then you should have no issue creating the full 3TB partition.
Thank you for replay. Proxmox is new to me, could you please give me some hints how to do it?
 
I did it! Thank you sg90!

I had some problems with "mkpart data ext4 primary 2048s 100%" command, so I did it a bit different using parted, and it worked.
Thank you! :)
 
Last edited:
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how did the command, i''m still confuse. have some issue with 2tb
I did it! Thank you sg90!

I had some problems with "mkpart data ext4 primary 2048s 100%" command, so I did it a bit different using parted, and it worked.
Thank you! :)
 

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