Reducing pve-tdata

[jacubillo]

Hello,

I have a PVE cluster with a node with 5x8TB disks. 2 discs are for OS on a Raid1 and the other 3discs are part of a ceph cluster. I don't want to loose so much space on the OS disc since only 3GB are being used>

/dev/mapper/pve-root 94G 3.0G 87G 4% /

root@proxmox05:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 7.3T 0 disk
├─sda1 8:1 0 1007K 0 part
├─sda2 8:2 0 512M 0 part /boot/efi
└─sda3 8:3 0 7.3T 0 part
├─pve-root 253:0 0 96G 0 lvm /
├─pve-swap 253:1 0 8G 0 lvm [SWAP]
├─pve-data_tmeta 253:2 0 15.8G 0 lvm
│ └─pve-data 253:4 0 7.1T 0 lvm
└─pve-data_tdata 253:3 0 7.1T 0 lvm
└─pve-data 253:4 0 7.1T 0 lvm

Since the VMs live in the Ceph storage... Is it ok & safe to reduce the pve-data_tdata vg or remove it completely to create a new volume and use this space for backups? Otherwise I will have 7.1TBs if unused space...

Any suggestions?

 

[Impact]

Please use code blocks when sharing things like this. It appears that the data volume is unused. Check lvs to make sure.
If you're sure you don't need it you can go to node > Disks > LVM-Thin and remove data/local-lvm.
Alternatively just leave it as is and create thin volumes on it for your data.