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Forum Discussion
Readynas Pro 6 stuck in power off - reboot power off cycle.
Hello. I've got a Readynas Pro 6, that I updated to the 6.0 firmware some time ago. It's been running flawlessly for a few years now.\
The unit is used for backup (Time Machine and rsync from Linux boxes) and serving media.
Earlier today I noticed that the device had rebooted. A few mnintes later it's rebooted again.
From the LED screen at power on I see:
- checks each drive (6 x 3TB).
- Connects network
- Checks boot drive, get's to about 50% then powers down.
- After ten seconds or so it powers back up.
At first I suspected overheating, so I opened it up cleaned all the fans. But that's not the issue.
I guess my next guess is the power supply.
Any tips as to what this issue is?
Many thanks and Happy New Year.
Cheers
Ferg
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11 Replies
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It could be the disks. Perhaps try testing disk 1 in a PC with vendor tools (Seatools for Seagate; Lifeguard for Western Digital).
If you have (or can borrow from a PC) a standard ATX power supply, you can hook that up externally just to see if it is the supply. If it ius, the replacement is an SFX form factor one. If you are going to run it any length of time with the external supply, cover the gaps where the cable comes out and the internal power supply fan opening with masking tape to keep air flowing properly over the drives.
Thanks. That is certainly not the type of job to really be doing with a New year's Day hangover....! Those molex are pretty tight. I hooked up a spare ATX PSU. Now the unit briefly turns on then back off again. So I guess the issue is more serious. Oh well.
So an update on this issue. As mentioned previously I'd got it booted up but with two drives marked as failed on a six drive RAID5 array was not looking too good...! After 24 hrs it died again and powercycled on subsequent boots. So on a whim I replaced the PSU*. Now it boots fine. The array was repaired that took 12 hours, but the unit is now up and running fine.
I used a SilverStone SST-ST45SF v3. It fits nicely albeit with many redundant cabling. I needed a ATX24 pin extension. It was about 100mm short! I also needed a Molex splitter as the PSU comes with only two Molex plugs (many SATA though!).
Now let's see if I still get COMMAND TIMEOUTS on the two drives as before. I have got two replacements ready to pop in if so. I wonder (without any evidence to back this up) if the failing PSU supplied low power to the two drives and caused the errors.. Probably now :-)
Thanks for all your suggestions.
Stay safe and healthy!
A command time-out can be caused by either side, so low voltage to the drive or to the electronics controlling it absolutely could cause those errors. I suspect that your "dead" drives were just not spinning up in time, too. You just got lucky once or twice and they made it. Are those two drives different, maybe requiring a bit more power? That's not a problem for a healthy NAS, but could be a part of the puzzel.
Good that you identified the failing power supply before it really did take your volume with it. If the Molex connectors are both on one wire bundle, I recommend a SATA to Molex adapter coming from another wire bundle instead of splitting off a Molex. If there are only two bundles, both containing both SATA and Molex, it's a don't care.
Thanks. That's helpful. The drives are indeed both different to the others in the NAS. Others are ST2000M2001, but the error prone pair are different (I cannot actually remember the drives).
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