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2 disks died at once :(
I shutdown my ReadyNAS Pro 4 this morning (Radiator 4.2.27) , but when I rebooted it an hour later, 2 of the 4 disks were suddenly marked as dead.
The NAS wasn't physically moved, and its on a UPS with surge protector.
There were no prior SMART alerts and nothing in the log to suggest a pending failure.
I suspected (hoped) it might be a chassis problem, but having swapped the drives into an identical ReadyNAS, they are marked as dead there too.
Any ideas what could have caused this?
It was being used purely to host an iSCSI volume (just 2TB i think). I notice I deleted the media share some time ago, and this is the first time its been rebooted since, but Im sure that could not affect anything
For a while, viewing the device in RAIDar was only showing one drive as failed (yellow as opposed to green), even when FrontView was saying both had failed.
I stock all 3 of my ReadyNASes with 2TB Western Digital RED drives (on HCL)
The NAS wasn't physically moved, and its on a UPS with surge protector.
There were no prior SMART alerts and nothing in the log to suggest a pending failure.
I suspected (hoped) it might be a chassis problem, but having swapped the drives into an identical ReadyNAS, they are marked as dead there too.
Any ideas what could have caused this?
It was being used purely to host an iSCSI volume (just 2TB i think). I notice I deleted the media share some time ago, and this is the first time its been rebooted since, but Im sure that could not affect anything
For a while, viewing the device in RAIDar was only showing one drive as failed (yellow as opposed to green), even when FrontView was saying both had failed.
I stock all 3 of my ReadyNASes with 2TB Western Digital RED drives (on HCL)
Sat May 30 18:07:22 GMT 2015 System is up.
Sat May 30 18:06:59 GMT 2015 Volume scan failed to run properly.
Sat May 30 17:53:05 GMT 2015 Volume scan failed to run properly.
Sat May 30 17:45:46 GMT 2015 Rebooting device...
Sat May 30 17:45:46 GMT 2015 Please close this browser session and use RAIDar to reconnect to the device. System rebooting...
Sat May 30 17:41:58 GMT 2015 Successfully applied new network settings.
Sat May 30 17:40:07 GMT 2015 Successfully applied new network settings.
Sat May 30 17:18:13 GMT 2015 System is up.
Sat May 30 17:17:44 GMT 2015 Volume scan failed to run properly.
Sat May 30 16:45:28 GMT 2015 System is up.
Sat May 30 16:44:59 GMT 2015 Volume scan failed to run properly.
Sat May 30 16:09:01 GMT 2015 Powering off device
Sat May 30 16:09:01 GMT 2015 Please close this browser session and use RAIDar to reconnect to the device after it is powered back on. System powering off...
Tue Sep 23 23:47:09 GMT 2014 Successfully obtained DHCPv4 address.
Tue Sep 23 14:37:29 GMT 2014 Alert test message has been sent.
Tue Sep 23 14:32:39 GMT 2014 Successfully stopped UPnP service.
Tue Sep 23 14:32:39 GMT 2014 Printers no longer advertised over Bonjour.
Tue Sep 23 14:32:39 GMT 2014 FrontView no longer advertised over Bonjour.
Tue Sep 23 14:31:15 GMT 2014 Fan will be recalibrated over the next few minutes.
Tue Sep 23 14:29:51 GMT 2014 [media] deleted.
Tue Sep 23 14:26:56 GMT 2014 Successfully applied new network settings.
13 Replies
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BaJohn wrote: Technically, switching on the drives is a stressor event, and they were both switched on together (I assume).
Yeah, I can only assume this was the problem somehow. Maybe my UPS isn't protecting against surges as well as it ought to be
I normally try to use identical disks but from different batches in my NAS, but looking at the serial numbers it looks like they all came from the same batch, so maybe thats a factor too
That is one of the things that worries me 'long term', since I bought 7 disks together (6 + spare, see http://www.readynas.com/forum/viewtopic.php?f=24&t=80614) and obviously the 'end of life' will occur at a similar time. I am not certain that different batches of the same disk would make significant difference. Anyway it would mean buying from (worst or is that best, case) 7 different suppliers.carpii wrote:
I normally try to use identical disks but from different batches in my NAS, but looking at the serial numbers it looks like they all came from the same batch, so maybe thats a factor tooBaJohn wrote: Technically, switching on the drives is a stressor event, and they were both switched on together (I assume).
I almost wish I have a 'farm' of NAS systems so I could rotate them. :idea:
One other thought - maybe at start up there is a lot of vibration in your system. Maybe they ALL fire up together, or are they sequentially, either of which could be a problem if the mounting is not good. Possible some resonance occurred in the supporting desk/rack etc.
Spinning up all disks simultaneously also draws a lot more power. I think in some cases Netgear staggers spin-up, in other cases they don't. Perhaps one of the Netgear folks can comment.BaJohn wrote: One other thought - maybe at start up there is a lot of vibration in your system. Maybe they ALL fire up together, or are they sequentially, either of which could be a problem if the mounting is not good. Possible some resonance occurred in the supporting desk/rack etc.
Though I don't think we're ever likely to sort out the trigger.
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