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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 Lin...
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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