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ReadyNas Ultra 6 Plus keeps rebooting randomly

niallryan
Guide

ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi there,

I cannot remember if I mention or posted this before, apologies if I did but I am still having the following issues. I have 3 readynas ultra 6's of which one is a plus and is the one with the issue.

 

The issue seems to occur randomly but most of the time I see messages saying the system fan is running below threshold. I recently changed the fan to the one that was recommended and this was all working fine but I still get the issue and recently saw it saying that the below threshold was shoing as 0 rpm. I went down to the Nas and could see that the system fan was not spinning at all. A rebootof the nas resolved it and it was spinning again.

I am seeing the NAS reboot itself from time to time - especially if I am writing to the NAS. The rpm of the system fan drops drastically - sometimes it will continue to work even on the low spin (800 rpm) and then regain speed back up to 1200 rpm. then somtimes if it drops or maybe not at all but something would cause it to reboot. 9 times out of 10 after rebooting it has to carry out a data resync which is time consuming but does not stop any data being writing etc but takes longer.

My question is other than having the system fan changed what else can cause it and how can i fix it. Please any elp would be greatful.

 

It is a readyNAS Ultra 6 Plus as I said running OS 6.10.4 Hotfix 1 and has 4 x 3TB WD Red drives running X-RAID 5 and capacity is currently at 6.26TB free out of 8.17TB.

 

Any help would be hugely appreciated - I have 2 other NAS Ultra 6's (not Plus) and they are all working fine and I have a RN104 working fine.

 

TIA

Model: RNDP600U|ReadyNAS Ultra 6 Plus Chassis only
Message 1 of 89
Sandshark
Sensei

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

For the fan issue, try this from SSH:

 

# echo 1000 > /etc/frontview/min_fan_speed_override
# systemctl restart readynasd

For the restarts, it may be because the fan is not running and the unit gets too hot.  So see if it's fixed by the above first.  If it's not, you could have a failing power supply.

Message 2 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi and many thanks for the reply.

 

I logged into the NAS to make sure everything was ok but in actual fact it was carrying out a re-sync. So it must have restarted during the night - looking at the logs it indeed did - seemingly several times and the NAS was not being used but running in idle. See screenshot of the logs - time is in GMT (0.00)Screenshot 2021-04-22 at 10.24.48.png

Message 3 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Apologies meant to add, is it safe to continue with the commands you stated ?

 

Or is it something else - I have read that people have mentioned a temp sensor failure or indeed a power supply failure.

 

Regards

Message 4 of 89
mdgm
Virtuoso

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

The command increases the minimum fan speed. It's a safe thing to try.

It could be that a minimum of 800 is too slow a speed for your fan to stay running reliably.

 

To reverse it you can do

# rm /etc/frontview/min_fan_speed_override
# systemctl restart readynasd

Note you don't type the #. That's to comment it out as you should think about every command you enter rather than blindly copy and paste.

Message 5 of 89
StephenB
Guru

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly


@niallryan wrote:

Hi and many thanks for the reply.

 

I logged into the NAS to make sure everything was ok but in actual fact it was carrying out a re-sync. So it must have restarted during the night - looking at the logs it indeed did.


Any idea why it might have restarted repeatedly?  Or why it needed to resync?  A power issue perhaps?

 

You might want to download the full log zip file, and look in there for more clues on what happened.

Message 6 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi there,

 

This is the first time that I have seen it restart itself so many times and each time it has to re-sync - so it restarts itself while re-syncing.

 

Can I run those commands in ssh when it is re-syncing ?

 

Power issue is looking likely but as i said at the beginning the system fan stopped spinning but the Nas was still running normal but I restarted the NAS for the system fan to start spinning again.

 

The only thing I can think off now is the fan that is in the power supply - maybe that needs cleaning or maybe the power supply needs replacing.

 

regards

N

Message 7 of 89
StephenB
Guru

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly


@niallryan wrote:

 

Can I run those commands in ssh when it is re-syncing ?

 


You can, but there might not be much benefit if the PSU is failing.

Message 8 of 89
Sandshark
Sensei

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

The power connection doesn't normally come loose or require cleaning.  Too much dust build-up elsewhere could affect the supply or other circuits, though.

 

The power supply has a separate power source, called +5VSB (+5 Volts StandBy) that powers the on/off and NIC circuitry.  Because it enables on/off, it's on all the time, even when the NAS is "off", unless the rear switch is off or it's unplugged.  It is, therefore, a common first failure.  Random power offs or restarts (which could be aggravated by the unit getting warm), trouble starting the unit, and NIC errors are typical signs it's the problem.  Because it's dropped to 3.3V by separate NAS circuitry, warnings about 3VSB being low may also occur.

 

If you have a "spare" standard ATX supply, you can connect it externally and see if it fixes the problem.  Just plug it in in place of the internal supply, running the cables out a gap between the rear cover and the main chassis, and use masking tape or similar to seal the rest of the gap and the internal power supply opening.  If that works, a standard SFX supply of at least 350W rating is usually a suitable replacement (check the specific output specs for the supply).  Of course, you could also just buy an SFX form factor supply and try it.

Message 9 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi there,

 

After entering those commands in SSH id did not keep it above the 1000 rpm as it is currently running at 992rpm

 

So would it be fair to say that the issue is the PSU ??

 

Regards

 

N

Message 10 of 89
mdgm
Virtuoso

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

1000 is the minimum that it is “aiming” for. 992 is close enough.

The fan will only spin up to faster speeds when certain thermal thresholds are met.

Does it still crash or is it stable now?
Message 11 of 89
Sandshark
Sensei

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

The power supply issue, if it exists, would not affect the fan in any way.  Overheating resulting from the fan stalling and the power supply are potential independent causes for the resets.  You have probably solved the fan stall issue (I don't know of any that will stall at a target speed of 1000 when functioning properly, which is why I suggested it) , so now you need to see if that also fixes the reset problem.

Message 12 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi again,

 

Only got to the NAS again today to find it is indeed still rebooting when items being written to it. Actually happened when I was transferring files to it, so it rebooted and is now syncing again.

 

I will have to look at the next step which I am reading the other comments seem to be towards the power supply. Unless there is something else or maybe something in the logs that might tells us ?

 

Regards

 

 

N

Message 13 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

I have today been trying to add files to the NAS and each time the files are transferring the server reboots. After rebooting it re-starts the data syncing.

 

Literally pulling the hair (what is left) out of my head.

 

I am not in anyway with NAS tech - would consider myself a beginner even though I have had them for a few years now.

 

Is there anyway of finding out the actual cause of the issue or we saying it is the power supply ?

 

Appreciate any and all the help recieved so far.

 

Regards

 

N

Message 14 of 89
StephenB
Guru

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly


@niallryan wrote:

 

Is there anyway of finding out the actual cause of the issue or we saying it is the power supply ?

 


Try copying a lot of data from the NAS (not writing to it). That should stress the power supply about the same as writing to the disks will.

 

Also, try downloading the log zip file again, and look for btrfs or disk errors in system.log and kernel.log.

 

I am thinking that a disk problem might be more likely than the power.

 

 

Message 15 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Many thanks for those instructions. I decided to search the logs first and no btrfs in the system.log but there are a good few in the kernel.log

I looked at the time of the reboot earlier today which was loisted at 17:58 and there is a btrfs for that time also. In fact the times in the kernal for btrfs match all the reboot times. I have attahced the list here - hope it is ok. 

 

Apr 24 18:29:46 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:root devid 1 transid 192199 /dev/md0
Apr 24 18:29:46 OmbiPlex-4 kernel: BTRFS info (device md0): has skinny extents
Apr 24 18:29:47 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:data devid 1 transid 241353 /dev/md127
Apr 24 18:29:48 OmbiPlex-4 kernel: BTRFS info (device md127): has skinny extents
Apr 26 15:57:15 OmbiPlex-4 kernel: Btrfs loaded, crc32c=crc32c-generic
Apr 26 15:57:15 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:root devid 1 transid 193912 /dev/md0
Apr 26 15:57:15 OmbiPlex-4 kernel: BTRFS info (device md0): has skinny extents
Apr 26 15:57:18 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:data devid 1 transid 245172 /dev/md127
Apr 26 15:57:18 OmbiPlex-4 kernel: BTRFS info (device md127): has skinny extents
Apr 26 20:15:55 OmbiPlex-4 kernel: Btrfs loaded, crc32c=crc32c-generic
Apr 26 20:15:55 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:root devid 1 transid 194157 /dev/md0
Apr 26 20:15:55 OmbiPlex-4 kernel: BTRFS info (device md0): has skinny extents
Apr 26 20:15:55 OmbiPlex-4 kernel: BTRFS info (device md0): checking UUID tree
Apr 26 20:15:56 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:data devid 1 transid 245554 /dev/md127
Apr 26 20:15:57 OmbiPlex-4 kernel: BTRFS info (device md127): has skinny extents
Apr 27 07:30:18 OmbiPlex-4 kernel: Btrfs loaded, crc32c=crc32c-generic
Apr 27 07:30:18 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:root devid 1 transid 194545 /dev/md0
Apr 27 07:30:18 OmbiPlex-4 kernel: BTRFS info (device md0): has skinny extents
Apr 27 07:30:19 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:data devid 1 transid 246572 /dev/md127
Apr 27 07:30:19 OmbiPlex-4 kernel: BTRFS info (device md127): has skinny extents
Apr 27 15:28:33 OmbiPlex-4 kernel: Btrfs loaded, crc32c=crc32c-generic
Apr 27 15:28:33 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:root devid 1 transid 194768 /dev/md0
Apr 27 15:28:33 OmbiPlex-4 kernel: BTRFS info (device md0): has skinny extents
Apr 27 15:28:33 OmbiPlex-4 kernel: BTRFS info (device md0): checking UUID tree
Apr 27 15:28:34 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:data devid 1 transid 247257 /dev/md127
Apr 27 15:28:35 OmbiPlex-4 kernel: BTRFS info (device md127): has skinny extents
Apr 27 16:24:09 OmbiPlex-4 kernel: Btrfs loaded, crc32c=crc32c-generic
Apr 27 16:24:09 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:root devid 1 transid 194855 /dev/md0
Apr 27 16:24:09 OmbiPlex-4 kernel: BTRFS info (device md0): has skinny extents
Apr 27 16:24:09 OmbiPlex-4 kernel: BTRFS info (device md0): checking UUID tree
Apr 27 16:24:10 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:data devid 1 transid 247348 /dev/md127
Apr 27 16:24:11 OmbiPlex-4 kernel: BTRFS info (device md127): has skinny extents
Apr 27 17:58:17 OmbiPlex-4 kernel: Btrfs loaded, crc32c=crc32c-generic
Apr 27 17:58:17 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:root devid 1 transid 195007 /dev/md0
Apr 27 17:58:17 OmbiPlex-4 kernel: BTRFS info (device md0): has skinny extents
Apr 27 17:58:17 OmbiPlex-4 kernel: BTRFS info (device md0): checking UUID tree
Apr 27 17:58:18 OmbiPlex-4 kernel: BTRFS: device label 33eafb3f:data devid 1 transid 247500 /dev/md127
Apr 27 17:58:18 OmbiPlex-4 kernel: BTRFS info (device md127): has skinny extents
Apr 27 17:58:24 OmbiPlex-4 kernel: BTRFS info (device md127): checking UUID tree

 

Also errors in the kernel.log

 

Apr 27 15:35:21 OmbiPlex-4 kernel: ata2.00: error: { UNC }
Apr 27 15:35:21 OmbiPlex-4 kernel: sd 1:0:0:0: [sdb] tag#11 Sense Key : Medium Error [current] [descriptor]
Apr 27 15:35:21 OmbiPlex-4 kernel: sd 1:0:0:0: [sdb] tag#11 Add. Sense: Unrecovered read error - auto reallocate failed
Apr 27 15:35:21 OmbiPlex-4 kernel: blk_update_request: I/O error, dev sdb, sector 94291608
res 41/40:00:00:ed:9e/00:00:05:00:00/40 Emask 0x409 (media error) <F>
Apr 27 18:04:24 OmbiPlex-4 kernel: ata2.00: error: { UNC }
Apr 27 18:04:24 OmbiPlex-4 kernel: sd 1:0:0:0: [sdb] tag#0 Sense Key : Medium Error [current] [descriptor]
Apr 27 18:04:24 OmbiPlex-4 kernel: sd 1:0:0:0: [sdb] tag#0 Add. Sense: Unrecovered read error - auto reallocate failed
Apr 27 18:04:24 OmbiPlex-4 kernel: blk_update_request: I/O error, dev sdb, sector 94301440
res 41/40:00:00:ed:9e/00:00:05:00:00/40 Emask 0x409 (media error) <F>
Apr 27 18:04:28 OmbiPlex-4 kernel: ata2.00: error: { UNC }
Apr 27 18:04:28 OmbiPlex-4 kernel: sd 1:0:0:0: [sdb] tag#15 Sense Key : Medium Error [current] [descriptor]
Apr 27 18:04:28 OmbiPlex-4 kernel: sd 1:0:0:0: [sdb] tag#15 Add. Sense: Unrecovered read error - auto reallocate failed
Apr 27 18:04:28 OmbiPlex-4 kernel: blk_update_request: I/O error, dev sdb, sector 94301440
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864192 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864200 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864208 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864216 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864224 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864232 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864240 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864248 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864256 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864264 on sdb3)

 

Regards

 

N

Message 16 of 89
StephenB
Guru

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

I think these are likely the problem:

Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864192 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864200 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864208 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864216 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864224 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864232 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864240 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864248 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864256 on sdb3)
Apr 27 18:04:29 OmbiPlex-4 kernel: md/raid:md127: read error corrected (8 sectors at 84864264 on sdb3) 

Are you seeing errors in the smart stats in disk-info.log?

Message 17 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi Stephen,

 

I looked at the disk_info.log and no actual errors in the ATA error count on any of the drives BUT I do notice one difference between all the drives and in particular to device sdb which is channel 1 which is the only one which has teh following :

 

Current Pending Sector Count: 1

 

where all the others show 0 (zero) for this - everything else is the same.

 

Regards

N

Message 18 of 89
StephenB
Guru

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly


@niallryan wrote:

 

 

I looked at the disk_info.log and no actual errors in the ATA error count on any of the drives BUT I do notice one difference between all the drives and in particular to device sdb which is channel 1 which is the only one which has teh following :

 

Current Pending Sector Count: 1

 


There are a lot of read errors in the log though.  Maybe power down the NAS, and test the drive in a Windows PC (connecting with either SATA or a USB adapter/dock).  Use Lifeguard for WD disks; Seatools for Seagate.  Run the full generic test, not just the short one.

Message 19 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi Stephen,

 

Would this have any impact on data on the drive if I take it out and run a test on it as instructed ?

 

Also you wouldn't believe it but one of my other NAS 6 Ultra's has an issue. It happen last night (my time) when it was updating the firmware to 6.10.4 (don;t know why it was only doing it now) and now is curently offline - went and had a look and the display on the NAS itself shows it installing firmware and the |||||||||||||||||||||||||| goes across the bottom of the display and disappears and does it again and again and again - seems to be stuck in a loop - any ideas - will start a new subject for this issue if necessary - how can I resolve it - it has been doing this all night as I check again this morning and it is still doing it. Having some bad luck with these now 😞 

 

Regards

 

N

Message 20 of 89
StephenB
Guru

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly


@niallryan wrote:

 

Would this have any impact on data on the drive if I take it out and run a test on it as instructed ?

 


No. The tests I suggested were non-destructive.  Note Windows won't recognize the file system, and won't mount the drive - that is expected.  But the diagnostics will still detect the disks and can test them.

 

Do keep the NAS powered down while the drive is removed.  If you power it up, you will need to do a resync of the disk when you reinsert it.

 


@niallryan wrote:

 

Also you wouldn't believe it but one of my other NAS 6 Ultra's has an issue. It happen last night (my time) when it was updating the firmware to 6.10.4 (don;t know why it was only doing it now) and now is curently offline - went and had a look and the display on the NAS itself shows it installing firmware and the |||||||||||||||||||||||||| goes across the bottom of the display and disappears and does it again and again and again - seems to be stuck in a loop - any ideas - will start a new subject for this issue if necessary - how can I resolve it - it has been doing this all night as I check again this morning and it is still doing it.


Ouch.  I think you will need to try rebooting it (which will probably require disconnecting power, though holding down the power switch until it does a forced shutdown might also work).

 

Message 21 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi StephenB,

 

Many thanks I will do that more than likely at the weekend.

 

Also....

 

The reboot worked for the completion of the FW update - many thanks.

Wonder what caused it to stick.

 

Regards

N

Message 22 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

Hi there,

 

I have noticed that it is not only when writing data to the NAS. It also happens when not in use but is powered on but idle. Looking at this log screen shows a lot of reboots and eventually stayed on and started data syncing again.

Might suggest something else or as well as the HDD with errors ?

Screenshot 2021-05-06 at 19.44.56.png

Message 23 of 89
Sandshark
Sensei

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

That actually suggests that the NAS was not idle.  If it was writing something to the volume when the reset occurred, that could cause the drive errors and re-sync.  It suggests it's not due to spin-up, because that would likely result in a warning about the drive being dead before it started the re-sync.  But you could check spindown.log and see if the times correlate.

 

So now the question is whether something is triggering the restart and the re-sync is just a consequence of that, or if the drive issue is at the heart of the matter.

 

I'm not sure what could be writing to the voloume and trigger a re-sync.  Antivirus, if enabled, could cause it to come out of idle, but I don't know what it writes to the volume, if anything.

 

How much RAM do you have?  If it's just the original 1GB, that could be an issue with OS6.

Message 24 of 89
niallryan
Guide

Re: ReadyNas Ultra 6 Plus keeps rebooting randomly

@Sandshark

@StephenB

@mdgm 

 

Hi guys,

With regards to the above named issue and this still continues even as I am trying tomove data from this NAS to another NAS using the backup process.

And of course 9 times out of 10 it will go into a re-syncing of the data after it reboots. There is only 2.1TB of data so would only take a few hours.

I know that I can continue and move data but obviously impacting the rate of transfer etc.

 

I would like to try and get my finger on where the issue lies.

Back in the conversation we did see that it could be one of the drives beginning to fail but the idicator next to the field in the logs is no longer there as it is back to '0' which is strange.

 

The only other thing that was mentioned is the power unit rather than the fans. I replaced one of the fans with a Noc. fan and while everything works fine the issue can still occur.

 

Any help would be greatly appreciated as I do want to use this NAS for other data once I have move all the current data to another NAS.

 

Just for a recap this is a ReadyNAS Ultra 6 Plus running OS6.10.5 and with 3 x WD Red 3TB HDD's to which are all showing as healthy.

CPU temp is at 37ºC / Fan speed 1622 rpm

System Temp at 41ºC / Fan Speed 992 rpm

 

Regards

 

NJP

Message 25 of 89
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