Guidance on initial disk setup

itsca

New Member
Sep 27, 2025
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Hi Everyone,

I am new to proxmox, but I have been doing a bunch of reading regarding initial disk setup.

I have a Dell PowerEdge Server with hardware raid for my main storage disks. With that said, if I understand correctly, ZFS would not be a suitable option for VM storage if the hardware controller is already doing the raid.

I am looking at using LVM for storage. I can see the 4TB raid disk under the node disks. I initially used fdisk to add a 2TB partition and started by adding a ThinPool and adding VMs to the pool. I have tried to add a second partition to the 4TB disk but I only seem to be able to use 150GB of the remaining storage even though I can see there is more space free to use.

Based on what I have read, it seems I was not supposed to use fdisk to create partitions. It seems I should have used pvcreate and then vgcreate. Do I need to wipe the disk and start over?

Any help would be greatly appreciated.

Some outputs below (sda is the disk I want to use)

root@proxmox-ve:~# pvs
PV VG Fmt Attr PSize PFree
/dev/sda1 local-dell-lvmthin lvm2 a-- 1.95t 376.00m
/dev/sdb3 pve lvm2 a-- <222.57g 0
/dev/sdc3 pve-OLD-59BA0A7B lvm2 a-- <6.92g 4.00m
root@proxmox-ve:~#

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