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Forum Discussion
[Pro Pioneer 6.5.1] NAS becomes unresponsive after random interval
For a while now, my NAS (6.5 in X-RAID-2) locks up after a random timeperiod, after which I need to do a hard poweroff and restart of the NAS to get it responsive again.
Unfortunately I havn't had a situation where I was logged in around the time it actually happens and could not see what is running and if something is wrong at the specific time.
Based on the various instances I have reconstructed the following symptoms:
1. The ping-times skyrocket (in the amount of 8000+ ms). The webinterface or SSH is not accessable anymore
2. The NAS doesn't respond anymore to ping requests.
3. Going to the NAS and pressing the powerbutton displays that pressing again will shut it down. Doing so will result in the display showing "Shutting down", after which nothing happens (waited a few hours, but it didnt shut down)
4. The display becomes unresponsive as well (pressing the button will not turn the display on)
In all situations I have to press and hold the power button to completely shut it down and restart the NAS. In most cases when turning it back on again the NAS boots normally. Only in 1 instance (today) the hard-reboot triggered a (re)sync. Probably due to some corruption. Which prompted the reason to finally open a ticket. (incidetally; a periodic scrubbing ran yesterday and completed without errors)
What I have tried:
- Freeing up more space. It now has 1.2TB free of the 11TB (which is more than te recommended 10%)
- Performed various maintenance actions (Scrubbing and balancing)
- Turning off different services which were running on the NAS
- Going through the logs to find anything that could indicate a problem
- Searched the forum (came across someone with similar problems, but it seemed to indicate the router as the problem)
What I havn't tried:
- Upgrading to 6.6 (due to messages in the forum about volumes becomming unavailable, I'm reluctant to do so before secureing backups)
Any help debugging/finding the problem would be appreciated!
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Probably you've done this, but just in case: Have you looked at the disk health? Perhaps download the logs and look in volume.log, smart_history.log.
Thanks for replying, but, indeed, I have checked those.
(In fact, they triggered me looking further into it as the smart_history displayed anomalies. But it referred to a disk having errors which was replaced a few months ago)
After much gnashing of teeth and rending of clothing, having had this issue with my Pro 6 for well over a year now, I believe I've finally stopped the intermittent crashing.
Solution: I disabled IPv6 everywhere I could find to do so. Did it in the GUI, tried to disable the kernel module, every possible way I could think of. Since I've done this, I've seen uptime of almost 40 days. Prior to this, I never got to 20 days without a crash.
I've posted in this thread about this and in a few others that seem like they might be the same symptoms. Check my post history if the details interest you. At this point I'm pretty sure it's the combination of the NIC, the ethernet driver, and IPv6 being enabled. I wasn't using IPv6, so it didn't matter to me if it was turned off. I'd love to hear if this fixes issues for anyone else. If you don't need IPv6, turn it off, see if it helps.
Unfortunately, this issue has persisted even with the latest 6.9.1 firmware, so I'm thankful for the tip!
I've just disabled IPv6 via the GUI. I'll report back with any updates. Fingers crossed!
Damn, same issued just occured after around 2 days, even after turning off IPv6 in the GUI.
Bummer.
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