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ReadyNAS Pro Business - Random Shutdowns
I have an old ReadyNAS Pro Business that has been serving me well for years now. It's running the latest version of the original operating system.
Recently it has started to randomly, or at least it seems random to me, shutdown. This causes the FS check upon startup. Last time this happened I got the found errors that can't be easily repaired.... message. I ran the volume check from Frontview and it fixed the errors.
I thought the shutdowns were being caused by my UPS, but I have just replaced it with an upgraded version and the NAS has shutdown again twice within a week for no apparent reason. I checked the UPS logs and there were no power events.
Is there a log or some way to troubleshoot what is causing the shutdowns?
Just thought I'd post a follow up. I replaced the power supply and have had no further crashes, so it looks like that was the issue.
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Is this happening around the same time of day? Perhaps when it's the warmest? Something may be overheating. I had some heat sinks come loose on one of mine, though it didn't cause a shut-down for me.
Bad RAM might cause that, and a RAM test is a simple enough check.
A power supply on its last legs can also cause a problem like that. The power on/off is controlled by the 5VSB (5V standby) power, and there likely is no monitor for that voltage. If it happens too fast, there may not be any warning recorded in the log before the shut-down even for voltages that have monitors. Fortunately, it's an easy fix (search the forum for advice) if it is the supply. If you have a standard ATX supply, you can also attach it externally and run for a couple days to see if that fixes it before you buy a replacement and find that's not the problem. Or if you decide to get another NAS, you can power it that way to recover your data.
I've seen a lot of power on/off related issues posted where it did turn out to be the power supply where I suspect 5VSB was the issue, and I had one myself where 5VSB was definately the culpret. Since it's always on, even when the NAS is off, it's more vunerable.
Thanks for the response. I should have thought power supply. I replaced the original supply several years ago.
In your replay you say that I can attach an ATX supply externally. Silly question, but how do I do this? I tried searching the forums but all I get is posts saying it can be done but not how. I would like to try this option before committing the time / expense of replacing my existing unit. If it is the PSU this time I'll probably just replace the whole NAS.
How can I tell if the memory test indicates bad memory? I have run the memory test. The first pass went quickly and made 100% with no errors. The second pass has reached 100% with no errors but has been stuck there for a couple of hours. Does this indicate a problem?
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