Pool Information¶
The Pool Information feature provides a comprehensive view of any ZFS pool's structure, health, and usage.
Accessing Pool Information¶
From the main menu, select Show zpool info.
Pool Selection¶
You'll be prompted to select which pool to view:
- The tool shows all available pools (both imported and importable)
- Use Up / Down or J / K to navigate
- Press Enter to select
Unimported Pools
If you select a pool that isn't currently imported, the tool will automatically import it for you.
Encryption Handling¶
If the selected pool is encrypted and locked, you'll be prompted for the encryption password before viewing the information.
Information Displayed¶
The pool information view shows four sections:
Status¶
Output from zpool status, including:
- Pool state (ONLINE, DEGRADED, etc.)
- Device structure (mirrors, raidz, etc.)
- Scrub/resilver status
- Any errors detected
Usage¶
Output from zpool list -v, showing:
- Total size
- Allocated space
- Free space
- Fragmentation percentage
- Capacity percentage
- Individual device usage
Datasets¶
All datasets within the pool:
- Name
- Used space
- Available space
- Referenced space
- Mountpoint
Snapshots¶
All snapshots within the pool:
- Snapshot name
- Used space
- Referenced space
- Creation date
Navigation¶
The information is displayed in a scrollable viewport:
| Key | Action |
|---|---|
| J / Down | Scroll down |
| K / Up | Scroll up |
| Ctrl+D | Page down |
| Ctrl+U | Page up |
| G | Go to top |
| Shift+G | Go to bottom |
| Esc / Q | Return to menu |
The scroll percentage is shown at the bottom of the screen.
Example Output¶
Pool: NIXROOT
======================================================================
STATUS
----------------------------------------------------------------------
pool: NIXROOT
state: ONLINE
scan: scrub repaired 0B in 00:27:41 with 0 errors on Sun Mar 1 00:54:59 2026
config:
NAME STATE
NIXROOT ONLINE
raidz1-0 ONLINE
nvme-eui.e8238fa6bf530001001b448b40f0effc-part2 ONLINE
nvme-eui.e8238fa6bf530001001b444a41037afa-part2 ONLINE
errors: No known data errors
USAGE
----------------------------------------------------------------------
NAME SIZE ALLOC FREE FRAG CAP
NIXROOT 1.82T 1.40T 371G 8% 77%
DATASETS
----------------------------------------------------------------------
NAME USED AVAIL REFER MOUNTPOINT
NIXROOT 1.40T 371G 192K none
NIXROOT/home 1.19T 319G 1.17T none
NIXROOT/nix 159G 141G 159G /nix
NIXROOT/root 9.78G 371G 9.78G /