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Forum Discussion
ReadyNAS 2304 Rebooting at Random Intervals
Back on Jan. 31, my boss and I installed a ReadyNas 2304 at a sister location. It was brought to our attention today that they were having some trouble with it, so I logged into the web panel to begi...
No warnings in the log before the reboot? Does the log say it's shuitting down, or do you just see the restart? If the unit is on an UPS, could the UPS be causing a brief power glitch?
No, I do not see any warnings before the reboot, and in the system logs, kernal.log, dmesg.log, and systemd-journal.log, I do not see anything that is blatantly triggering a reboot. The logs appear normal, and then just -- Reboot -- The unit is hooked up to a UPS, but if it were power supply issues, wouldn't this be logged as a shutdown/boot up rather than a reboot?
GHudson wrote:
The unit is hooked up to a UPS, but if it were power supply issues, wouldn't this be logged as a shutdown/boot up rather than a reboot?
I think Sandshark is wondering if the UPS itself might be mis-behaving (creating a power glitch instead of a smooth cutover to battery power).
GHudson wrote:
This is especially alarming considering that it does not have any reboot policy set in its power settings.
ReadyNAS will reboot automatically if the power is unexpectedly cut and then restored. If the NAS were to gracefully shutdown (which it would if it is monitoring the UPS) then it wouldn't restart automatically when power is supplied.
GHudson wrote:
No, I do not see any warnings before the reboot, and in the system logs, kernal.log, dmesg.log, and systemd-journal.log, I do not see anything that is blatantly triggering a reboot.
Can you estimate how long the NAS might have been down by looking for time gaps in the log?
Is there other equipment in the room that might give some hints about power issues in the room?
Yes, I was considering that the UPS itself might be causing a power glitch, perhaps when the power drooped (not properly changing to battery seamlessly). The NAS power supply is a possibility. I'm sure the NAS doesn't monitor the voltages continuously, so a really fast disruption could be the issue. I have no idea how fast it does monitor them and what the chance is you could have that many issues without ever seeing a voltage monitor issue -- it seems like a long shot.
I don't know if the current model rack mount systems have a watchdog timer or not. I think the older ones did (I've not looked at the BIOS settings in a long while), but they were based on OEM Supermicro boards. The desktop units definately do not have one. Still, something would have to be locking up to cause the WDT to fire unless it's faulty.
If the BIOS has it's own separate monitors for voltages and/or temperature, I suppose that could also be resetting it. But, again, would it keep happening with the NAS never getting wind of the problem? Doubtful, I think
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