Title: Openai/6971d533-1acc-800b-a048-a162caba12d7 - freem URL Source: https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&title=Openai%2F6971d533-1acc-800b-a048-a162caba12d7&veaction=edit Markdown Content: _This conversation was exported from ChatGPT_[[1]](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&title=Openai%2F6971d533-1acc-800b-a048-a162caba12d7&veaction=edit#cite_note-1) ## gpt-5-2[edit](https://freemwiki.com/index.php?title=Openai/6971d533-1acc-800b-a048-a162caba12d7&action=edit§ion=1 "Edit section: gpt-5-2") ### User: Hi.[edit](https://freemwiki.com/index.php?title=Openai/6971d533-1acc-800b-a048-a162caba12d7&action=edit§ion=2 "Edit section: User: Hi.") Hi. I'm on version TrueNAS-SCALE-25.04.2.6. I'm using 8 14tb HDD's in Raidz2. I do have my data backed up so I'm not super panicked, but I need to get to the bottom of this and get things back up and running. I woke up this morning and server was on but not accessible via web GUI, and no HDMI output, so I had to hard power down. Now, when booting, I'm repeatedly getting stuck at: "Starting ix-zfs.service - Import ZFS pools... (1 of 2) Job ix-zfs.service start running (53s / 15min 26s)" ### Assistant: You’re hitting this during ZFS pool import, which usually means ZFS is struggling with the pool hung I/O, device errors…[edit](https://freemwiki.com/index.php?title=Openai/6971d533-1acc-800b-a048-a162caba12d7&action=edit§ion=3 "Edit section: Assistant: You’re hitting this during ZFS pool import, which usually means ZFS is struggling with the pool hung I/O, device errors…") You’re hitting this during ZFS pool import, which usually means ZFS is struggling with the pool (hung I/O, device errors, or a corrupted import state). The hard power-off likely exposed an existing issue rather than caused it. The good news: * Your system is not frozen — ix-zfs.service waits up to 15+ minutes * RAIDZ2 + backups = very recoverable situation Below is a safe, structured way to diagnose and recover, starting with the least destructive options. #### What’s most likely happening[edit](https://freemwiki.com/index.php?title=Openai/6971d533-1acc-800b-a048-a162caba12d7&action=edit§ion=4 "Edit section: What’s most likely happening") One (or more) of these: 1. A disk is slow, timing out, or failing 2. ZFS import is blocked waiting on a bad drive 3. Previous unclean shutdown left the pool in a dirty state 4. Hardware issue (HBA, SATA cable, power) ZFS is conservative — it will wait forever rather than risk corruption. #### Step 1: Let it try once (important)[edit](https://freemwiki.com/index.php?title=Openai/6971d533-1acc-800b-a048-a162caba12d7&action=edit§ion=5 "Edit section: Step 1: Let it try once (important)") On the current boot: * Wait at least 10–15 minutes total * Watch for any disk activity LEDs If it eventually proceeds → we move to cleanup. If it never completes → proceed below. #### Step 2: Interrupt boot → get shell access[edit](https://freemwiki.com/index.php?title=Openai/6971d533-1acc-800b-a048-a162caba12d7&action=edit§ion=6 "Edit section: Step 2: Interrupt boot → get shell access") Reboot and do this: 1. At the GRUB menu, choose: ```Advanced options → TrueNAS SCALE → Recovery Mode```OR press`Esc`during boot` ``` ``` 2. `Select:`` ``` Drop to root shell You should now have a console prompt. ==== Step 3: Check if ZFS sees your pool ==== Run:bash ``` ``` zpool import ``` ``` ===== Possible outcomes: ===== ====== A) Pool is listed normally ====== Example: ``` ``` pool: media state: ONLINE ``` ``` Good — try importing manually. ====== B) Pool shows DEGRADED / FAULTED ====== This usually points to one or two bad disks (still safe in RAIDZ2). ====== C) Command hangs ====== That strongly indicates a disk that is not responding. ==== Step 4: Try a safe manual import ==== First, try read-only (zero risk): ``` ``` bash ``` ``` zpool import -o readonly=on -f ``` ``` If that works → excellent, your data is intact. If it hangs or fails, try: ``` ``` bash ``` ``` zpool import -f -m ``` ``` (-m ignores missing logs/cache devices) ==== Step 5: Identify bad or slow disks ==== Run: ``` ``` bash ``` ``` lsblk -o NAME,SIZE,MODEL,SERIAL ``` `Then:` ``` bash ``` ``` dmesg | grep -Ei "ata|sas|scsi|error|timeout|reset" ``` ``` You're looking for things like: * I/O error * link reset * device offline * failed command ⚠️ One bad disk can stall the entire import ==== Step 6: If import still hangs — isolate the offender ==== Since you’re backed up, this is safe. # Power off # Disconnect ONE drive # Boot → try zpool import # Repeat until import succeeds RAIDZ2 allows two missing disks, so this is safe for diagnosis. Once the pool imports, ZFS will clearly tell you which disk(s) are missing or failed. ==== Step 7: After successful boot (VERY IMPORTANT) ==== Once the system boots: ``` ``` bash ``` ``` zpool status -v ``` `Then immediately:` ``` bash ``` ``` zpool scrub ``` `Also check SMART:` ``` bash ``` ``` smartctl -a /dev/sdX ``` ``` (Replace sdX with the failing drive) ==== Common root causes I see with SCALE 25.x ==== Based on your setup and symptoms: * SATA cable degradation * Power splitter failure * One HDD entering slow-death (timeouts, not total failure) * HBA firmware issue (LSI cards especially) Disks that are “half-alive” are the worst for ZFS. ==== What NOT to do (important) ==== ❌ Do NOT: * Reinstall TrueNAS yet * Destroy or recreate the pool * Run zpool clear blindly * Panic — this is a classic ZFS recovery scenario ==== Next step ==== Reply with: # Output of: ``` `bash zpool import`` ``` Whether it hangs or lists the pool ``` 1. `Any error lines from`dmesg` I’ll walk you through the exact recovery path from there. ## References[edit](https://freemwiki.com/index.php?title=Openai/6971d533-1acc-800b-a048-a162caba12d7&action=edit§ion=7 "Edit section: References") 1. [↑](https://freemwiki.com/index.php?mobileaction=toggle_view_mobile&title=Openai%2F6971d533-1acc-800b-a048-a162caba12d7&veaction=edit#cite_ref-1 "Jump up")["ZFS Pool Import Issue"](https://chatgpt.com/share/6971d533-1acc-800b-a048-a162caba12d7). ChatGPT. Retrieved 2026-01-22.