Storage Layout
Overview
Centerpoint uses a three-tier storage strategy:
- Local NVMe — fast system and application data storage
- Ceph OSD block devices — two NVMe drives contributing to a distributed Ceph cluster for object/block storage across the homelab
- NFS mounts from UnRAID — bulk media and data storage from the NAS server at
192.168.1.119
Local NVMe Drives
System Drive — nvme1n1 (1.8 TB)
The primary system disk, GPT-partitioned with LVM.
| Partition | Size | Mount Point | Purpose |
|---|---|---|---|
nvme1n1p1 |
1 GB | /boot/efi |
EFI System Partition |
nvme1n1p2 |
2 GB | /boot |
Boot partition |
nvme1n1p3 (LVM PV) |
1.8 TB | — | LVM physical volume |
ubuntu-vg/ubuntu-lv |
1.8 TB | / |
Root filesystem |
Current usage: 520 GB used / 1.3 TB free
This drive holds the OS, all Docker image layers (/var/lib/docker), container
volumes, and the compose project files under /home/jeeves/docker/.
Ceph OSD — nvme0n1 (931.5 GB)
Configured as a Ceph OSD block device under LVM management.
Mounted at /media/jeeves/1TB_Vol2.
The volume appears nearly empty at the filesystem level because Ceph manages the block device directly — actual utilised capacity is tracked by the Ceph cluster, not the OS mount point.
Ceph OSD — nvme2n1 (931.5 GB)
Second Ceph OSD block device, LVM-managed.
Mounted at /media/jeeves/1TB_Vol1. Shows ~115 GB used at the OS level; the
remainder is managed by Ceph.
Both Ceph OSD drives contribute to a distributed storage pool shared across the homelab. Ceph provides replication and data protection at the cluster level rather than at the individual host level.
NFS Mounts — UnRAID (192.168.1.119)
UnRAID at 192.168.1.119 hosts a 38 TB storage pool (~32 TB in use) and exports
three NFS shares, auto-mounted on Centerpoint at boot.
| Mount Point | NFS Source | Consumer Services |
|---|---|---|
/mnt/Photos |
192.168.1.119:/mnt/user/Photos |
Immich |
/mnt/data |
192.168.1.119:/mnt/user/Data |
General / miscellaneous |
/mnt/Multimedia |
192.168.1.119:/mnt/user/Multimedia |
Plex, Jellyfin, Stash, Audiobookshelf |
These paths are bind-mounted into media containers — the media files themselves are never stored locally on Centerpoint.
Notes / Gotchas
- If UnRAID is offline or rebooting, NFS mounts will stall and any container with
a bind mount into
/mnt/*will hang or fail to start until the mount recovers. - Docker named volumes (databases, config state, etc.) all reside on the system
NVMe under
/var/lib/docker/volumes/— these are not automatically backed up to UnRAID. - The Ceph cluster should be monitored independently; degraded OSD status does not surface through Docker or the OS mounts in any obvious way.
Last Updated: 2026-06-16