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Forum Discussion
carpii
May 30, 2015Tutor
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
Replies have been turned off for this discussion
- StephenBGuru - Experienced UserCan you test the two drives with Lifeguard in a PC?
- vandermerweMaster
carpii wrote:
I stock all 3 of my ReadyNASes with 2TB Western Digital RED drives (on]
The drives in the readynas you're writing about are not RED drives, although the RE drives are also on the HCL.
From the tone in your OP I would guess that the data on the pro 4 is backed up or easily replaced?
It is possible that 2 drives would fail like this, but it's odd and worth looking for another cause.
Check the drives as suggested. - carpiiTutor
StephenB wrote: Can you test the two drives with Lifeguard in a PC?
Thanks, I'll try this.
I gave away my one remaining Windows Laptop on recycle a few months ago :(
I'm hoping it'll run in a virtual machine with it attached via USB (wouldn't be entirely surprised if it doesn't, although the docs do claim it can test external hard drives) - carpiiTutor
vandermerwe wrote:
The drives in the readynas you're writing about are not RED drives, although the re drives are also on the HCL.
Good point :-) It seems these drives date to 2011/2012vandermerwe wrote:
From the tone in your OP I would guess that the data on the pro 4 is backed up or easily replaced?
I don't think I've lost anything, but I never did figure out how to backup VM's from an iSCSI volume, so instead have been backing each VM's filesystem up via rsync
So whilst its a major inconvenience to set them all up again, it could be much worse - BaJohnVirtuosoLosing 1 disc is unfortunate, and a rebuild puts extra stress on the remaining discs.
Presumably if you had a RAID10 configuration you would have had a 50% chance of recovery. - vandermerweMasterWhat is odd here is that there does not seem to have been a resync at any point.
carpii, the earliest entries in the logs you posted have a number of entries suggesting the readynas was being set up. There are a few services that have been switched off, the network settings have been altered, fan was recalibrated. What was going on at this point, was there perhaps a resync that happened around this time - that would make your scenario more likely to have happened. - carpiiTutor
vandermerwe wrote: What is odd here is that there does not seem to have been a resync at any point.
I don't think its been able to even start a resync, as it went from all 4 drives being functional, to 2 dead (resulting in no recognisable Volumes)
carpii, the earliest entries in the logs you posted have a number of entries suggesting the readynas was being set up.
There are a few services that have been switched off, the network settings have been altered, fan was recalibrated. What was going on at this point, was there perhaps a resync that happened around this time - that would make your scenario more likely to have happened.
I think all the network changes coincided with moving to a new LAN dns server, and probably rejigging the email alerts to use GMail two-factor auth
I don't use this ReadyNAS for anything other than iSCSI, so I think during initial setup I hadn't bothered to disable Bonjour etc
I do have the full log which I think covers its full lifetime...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.
Tue Jul 9 10:42:22 GMT 2013 System is up.
Sat Mar 9 10:01:17 GMT 2013 System is up.
Thu Aug 30 02:13:02 GMT 2012 Alert settings saved.
Thu Aug 30 02:09:51 GMT 2012 Failed to contact SMTP server.
Thu Aug 30 02:04:25 GMT 2012 Successfully applied new network settings.
Thu Aug 30 02:37:13 GMT 2012 System is up.
Thu Aug 30 02:36:57 GMT 2012 Successfully enabled root SSH access. The root password is now the same as your admin password.
Thu Aug 30 02:36:03 GMT 2012 Rebooting device...
Thu Aug 30 02:36:03 GMT 2012 Please close this browser session and use RAIDar to reconnect to the device. System rebooting...
Thu Aug 30 01:29:48 GMT 2012 Failed to contact SMTP server.
Thu Aug 30 01:21:48 GMT 2012 Alert settings saved.
Thu Aug 30 01:20:57 GMT 2012 Alert settings saved.
Thu Aug 30 01:16:19 GMT 2012 Successfully applied new network settings.
Thu Aug 30 01:16:09 GMT 2012 Successfully applied new network settings.
Sun Aug 26 15:52:33 GMT 2012 Alert settings saved.
Sun Aug 26 15:42:13 GMT 2012 Successfully applied new network settings.
Sun Aug 26 15:36:43 GMT 2012 Alert settings saved.
Sun Aug 26 15:31:23 GMT 2012 Failed to contact SMTP server.
Sat Mar 10 22:11:19 GMT 2012 System is up.
Sat Mar 10 15:36:36 GMT 2012 Powering off device
Sat Mar 10 15:36:36 GMT 2012 Please close this browser session and use RAIDar to reconnect to the device after it is powered back on. System powering off...
Sat Mar 10 15:30:07 GMT 2012 Unable to connect to specified NTP server(s).
Mon Oct 17 19:25:11 PDT 2011 Successfully applied new network settings.
Sat Nov 5 07:18:50 PDT 2011 System is up.
Sat Nov 5 06:42:41 PDT 2011 Powering off device
Sat Nov 5 06:42:41 PDT 2011 Please close this browser session and use RAIDar to reconnect to the device after it is powered back on. System powering off...
Mon Oct 17 19:24:49 PDT 2011 Successfully applied new network settings.
Mon Oct 17 19:21:53 PDT 2011 Successfully applied new network settings.
Mon Oct 17 19:20:48 PDT 2011 Successfully applied new network settings.
Mon Oct 17 18:45:23 PDT 2011 Successfully applied new network settings.
Mon Oct 17 18:39:26 PDT 2011 Successfully applied new network settings.
Mon Oct 17 18:37:59 PDT 2011 Successfully applied new network settings.
Mon Oct 17 17:50:29 PDT 2011 Successfully set new hostname.
Mon Oct 17 17:46:33 PDT 2011 Successfully applied new network settings.
Mon Oct 17 17:45:21 PDT 2011 Target successfully created. [store]
Mon Oct 17 17:44:56 PDT 2011 Target creation process started. [store]
Mon Oct 17 17:38:33 PDT 2011 Successfully stopped CIFS service.
Mon Oct 17 17:36:57 PDT 2011 Successfully changed password. [admin]
Mon Oct 17 17:33:00 PDT 2011 RAID sync finished on volume C.
Mon Oct 17 11:46:43 PDT 2011 System is up. - StephenBGuru - Experienced User
And they are enterprise drives.vandermerwe wrote: The drives in the readynas you're writing about are not RED drives, although the re drives are also on the HCL.
FWIW, double drive failures do happen, and drives will fail suddenly and without degradation of SMART stats. Though usually the second one fails on resync.
Is it possible that one drive failed earlier, and you simply didn't notice? (I realize no drive failures are in the log snippet...). - vandermerweMasterWhen I say it's odd, I meant that there does not seem to have been a stressor event that would have knocked out a second drive, before user noticed the first drive was gone.
Very unlucky I guess. - BaJohnVirtuoso
Technically, switching on the drives is a stressor event, and they were both switched on together (I assume).vandermerwe wrote: When I say it's odd, I meant that there does not seem to have been a stressor event that would have knocked out a second drive, before user noticed the first drive was gone.
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