Insufficient Free Space on rpool zfs

[Ravier]

Hello Proxmox community,

I'm facing an issue with my Proxmox setup where my storage pool has a total capacity of +3 TB, but the space is getting smaller by the day, even though my virtual machines (VMs) collectively use less than 2 TB. I've analyzed the usage of my VMs and there don't seem to be any exceptionally large files or datasets associated directly with them.

Here are some details and the steps I've considered so far:

Snapshots and backups: I've checked that there are no significant accumulated snapshots or backup files that could be consuming the extra space.(There isn't)

I don't know what else could be causing this discrepancy. Has anyone had a similar problem or could you suggest additional diagnostic steps to identify the root cause and what I can do to fix it?

Any insight or recommendations would be greatly appreciated. Thanks in advance for your help!

USER@pmx:~# qm list
      VMID NAME              STATUS     MEM(MB)    BOOTDISK(GB) PID
       100 LINUX                running    6144              40.00 7357
       101 WINDOWS        running    16384             80.00 8066
       102 LINUX                running    4096              45.00 2130784
       103 WINDOWS        running    6144              85.00 461997
       104 LINUX                stopped    4096              50.00 0
       105 WINDOWS        running    6144              65.00 3951121
       106 WINDOWS        running    6144             200.00 957539
       107 LINUX                running    12288             75.00 520797
       108 WINDOWS        running    4096              55.00 855715
       110 ORACLE             running    16384             95.00 523813
       111 WINDOWS        running    14172            630.00 516244
       114 LINUX                running    4096              40.00 1720471
       115 LINUX                running    8192              90.00 1716369
       120 WINDOWS        stopped    4096             100.00 0
       121 WINDOWS        running    4096              55.00 1731227
       122 WINDOWS        running    4096              50.00 711735
       123 WINDOWS        stopped    2048              40.00 0
       124 LINUX                stopped    2048              40.00 0
       127 LINUX                stopped    2048              40.00 0

Filesystem Size Used Avail Use% Mounted on
udev 63G 0 63G 0% /dev
tmpfs 13G 2.4M 13G 1% /run
rpool/ROOT/pve-1 198G 109G 90G 55% /
tmpfs 63G 37M 63G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
rpool 90G 256K 90G 1% /rpool
rpool/ROOT 90G 256K 90G 1% /rpool/ROOT
rpool/data 90G 256K 90G 1% /rpool/data
/dev/fuse 128M 40K 128M 1% /etc/pve
pool-reserva 371G 128K 371G 1% /pool-reserva
tmpfs 13G 0 13G 0% /run/user/0

NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
rpool 3.48T 3.20T 295G - - 67% 91% 1.00x ONLINE -