Disk partitioning

[Pheggas]

Hello. A while ago, when i set up proxmox on my HP ProDesk 400 G4 Mini (https://support.hp.com/us-en/document/c06047054), i specified the HDSIZE on installation. I thought the 50 GBs from my 256 gb SSD would be enough and the rest of the space i would use for VMs. Now i'd like to resize the local-lvm storage and give it rest of the space (so circa 220 GB at total will have the local-lvm). However, i found somewhere it is really dangerous to work with these tools to resize the partition.

So i did the lsblk command with this output:

NAME                 MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                    8:0    0 223.6G  0 disk
└─sda1                 8:1    0 223.6G  0 part /mnt/SSD
nvme0n1              259:0    0 238.5G  0 disk
├─nvme0n1p1          259:1    0  1007K  0 part
├─nvme0n1p2          259:2    0   512M  0 part /boot/efi
└─nvme0n1p3          259:3    0  49.5G  0 part
  ├─pve-swap         253:0    0   6.1G  0 lvm  [SWAP]
  ├─pve-root         253:1    0  12.3G  0 lvm  /
  ├─pve-data_tmeta   253:2    0     4G  0 lvm 
  │ └─pve-data-tpool 253:4    0  23.1G  0 lvm 
  │   └─pve-data     253:5    0  23.1G  1 lvm 
  └─pve-data_tdata   253:3    0  23.1G  0 lvm 
    └─pve-data-tpool 253:4    0  23.1G  0 lvm 
      └─pve-data     253:5    0  23.1G  1 lvm

So if i understand it the right way, i would need to resize pve-data-tdata partition. Is there any easy and safe way to do it without reformatting it?

 

[Dunuin]

I would also increase the size of pve-root a bit. 12GB can be fine but keep in mind that PVE will grow over time if you don't always manually delete log files and so on. I would atleast use something between 16GB and 32GB there.

And see here: https://github.com/proxmox/pve-docs/blob/master/local-lvm.adoc

Resizing the thin pool​

Resize the LV and the metadata pool can be achieved with the following command.
# lvresize --size +<size[\M,G,T]> --poolmetadatasize +<size[\M,G]> <VG>/<LVThin_pool>

Note	When extending the data pool, the metadata pool must also be extended.

 

[Pheggas]

I would also increase the size of pve-root a bit. 12GB can be fine but keep in mind that PVE will grow over time if you don't always manually delete log files and so on. I would atleast use something between 16GB and 32GB there.

And see here: https://github.com/proxmox/pve-docs/blob/master/local-lvm.adoc

Thank you. Firstly i would resize the pve-root by using lvresize --size +4G /dev/pve/root (is it right?) and then i would need to give all of the rest free space to the data. I don't know where is that data partition as in /dev/pve/ is only root and swap. But i think i should use lvresize -l 100%FREE /path/to/data ?

Edit: Found this lvresize -l +100%FREE pve/data