# Storage — zet.home.arpa

## Disk Layout

```
NAME                        SIZE    FSTYPE      MOUNTPOINT         LABEL
nvme0n1                   953.9G
├─nvme0n1p1                   1G   vfat        /boot/efi
├─nvme0n1p2                   2G   ext4        /boot
└─nvme0n1p3               950.8G   LVM2_member
  └─ubuntu--vg-ubuntu--lv 950.8G   ext4        /                  (OS disk)

sda                       931.5G
└─sda1                    931.5G   LVM2_member
  └─crucial--mx500-backup 931.5G   ext4        /data/ssd-photos   (Crucial MX500 SSD)

sdb                         9.1T
└─sdb1                      9.1T   ext4        /data/hsgt10a      (HGST 10TB #1)

sdc                         9.1T
└─sdc1                      9.1T   ext4        /data/hsgt10b      (HGST 10TB #2)

sdd                         3.6T                                   (unmounted — ws4000a/ws4000b)
├─sdd1                      1.8T   ext4                            ws4000a
└─sdd2                      1.8T   ext4                            ws4000b
```

## Mount Points

| Mount | Device | Size | Used | Free | Use% |
|-------|--------|------|------|------|------|
| `/` | ubuntu--vg-ubuntu--lv | 935 GB | 302 GB | 586 GB | 34% |
| `/boot` | nvme0n1p2 | 2.0 GB | 201 MB | 1.6 GB | 11% |
| `/boot/efi` | nvme0n1p1 | 1.1 GB | 6.2 MB | 1.1 GB | 1% |
| `/data/ssd-photos` | crucial--mx500-backup | 916 GB | 426 GB | 445 GB | 49% |
| `/data/hsgt10a` | sdb1 | 9.1 TB | 7.4 TB | 1.3 TB | 86% |
| `/data/hsgt10b` | sdc1 | 9.1 TB | 7.4 TB | 1.3 TB | 86% |

## fstab (`/etc/fstab`)

```
# OS / boot / swap — installer-generated
/dev/disk/by-id/dm-uuid-LVM-pZkwCzArj53TehlUJeYjQyR5pMsex7qNIPGqddmwnOHy5Rw7eBJvFHdd5fPzVMtw  /           ext4  defaults  0 1
/dev/disk/by-uuid/a186b998-5a71-4ca5-a7f0-dc36055e5d49                                           /boot       ext4  defaults  0 1
/dev/disk/by-uuid/8D7F-166E                                                                        /boot/efi   vfat  defaults  0 1
/swap.img                                                                                           none        swap  sw        0 0

# Added by Kenji
/dev/disk/by-id/dm-name-crucial--mx500-backup  /data/ssd-photos  ext4  defaults  0 1
/swap.extra                                      none               swap  sw        0 0
/dev/sdb1                                        /data/hsgt10a     ext4  defaults  0 1
/dev/sdc1                                        /data/hsgt10b     ext4  defaults  0 1
```

## Samba Shares

| Share | Path | Notes |
|-------|------|-------|
| `photos` | `/data/ssd-photos` | Crucial MX500 SSD, photos library |
| `hsgt10a` | `/data/hsgt10a` | HGST 10 TB primary bulk drive |

## NFS Exports

| Export | Clients | Options |
|--------|---------|---------|
| `/data/hsgt10a` | `172.27.0.0/24` | `rw,sync,no_subtree_check` |

## Notes

- **`sdd` (3.6 TB)** is connected but unmounted. Partitions labeled `ws4000a` and `ws4000b`, previously referenced in fstab as CIFS mounts from `172.27.0.2`. These appear to be historical drive copies — verify before mounting.
- **`/data/hsgt10a` and `/data/hsgt10b`** are at 86% capacity. Monitor closely.
- **SMART monitoring** (`smartmontools.service`) is active — check `smartctl -a /dev/sdX` for drive health.

## Checking Drive Health

```bash
sudo smartctl -a /dev/sda    # Crucial MX500
sudo smartctl -a /dev/sdb    # HGST 10TB #1
sudo smartctl -a /dev/sdc    # HGST 10TB #2
sudo smartctl -a /dev/sdd    # unmounted 3.6 TB
sudo smartctl -a /dev/nvme0n1  # OS NVMe
```