Running Unraid 4.7 with 6x2TB drives--about 8 TB of data currently stored.

 

A few days ago I got an old NAS up and running and decided to back up the Unraid files to the NAS.  About half way through a large file copy using Microsoft SyncToy (in the middle of the night apparently), the unraid server failed.  Green light on the motherboard--but will not boot, fans do not run etc.  I am guessing a power supply or motherboard issue.

 

I am about to start investigating the issue--but am not sure if there is a way to save the data on my drives.  If it is the powersupply, that should be an easy fix (though with the green led on the motherbaord turning on, my guess now is that there is a motherboard issue).

 

Can I swap out the motherboard and retain the drive data?  Any help/guidance/links to advice would be very much appreciated.

 

I am quite newbie with Linux--but have a decent working knowledge of windows machines and the HTPC world (the unraid server stores ripped blu rays, music, etc and serves as my back up machine for laptops/desktop PC's in the house).

 

Thanks again in advance for any ideas.

 

Chad

 

It should be perfectly possible to take the drives forward to new hardware as long as the drives themselves are OK.

 

If you are running 4.7 unRAID then you need to know which is your data disk and which is the parity disk,  I think that is the only critical factor.  If you are running 5.0 then the system will sort out which disks have been plugged in at what position.

 

Since you had a failure during the copy it would be prudent to consider doing reiserfsck checks on the disks before bringing up the array on new hardware.

Running Unraid 4.7 with 6x2TB drives--about 8 TB of data currently stored.

 

A few days ago I got an old NAS up and running and decided to back up the Unraid files to the NAS.  About half way through a large file copy using Microsoft SyncToy (in the middle of the night apparently), the unraid server failed.  Green light on the motherboard--but will not boot, fans do not run etc.  I am guessing a power supply or motherboard issue.

 

I am about to start investigating the issue--but am not sure if there is a way to save the data on my drives.  If it is the powersupply, that should be an easy fix (though with the green led on the motherbaord turning on, my guess now is that there is a motherboard issue).

 

Can I swap out the motherboard and retain the drive data?  Any help/guidance/links to advice would be very much appreciated.

 

I am quite newbie with Linux--but have a decent working knowledge of windows machines and the HTPC world (the unraid server stores ripped blu rays, music, etc and serves as my back up machine for laptops/desktop PC's in the house).

 

Thanks again in advance for any ideas.

 

Chad

Do you have a monitor connected?  Do you get to the BIOS? 

It could also be memory, or some other peripheral device loading down the power supply.  Disconnect all external fans and disks ... unplug all disk-controller cards, NIC cards... will the MB then let you get to the BIOS setup screen?

 

If you remove the memory, does the MB beep?  (assuming you have a speaker connected) the beep codes tell you what is going on.

 

It could easily be the power supply, as the LED on the MB is probably the 5 volt standby supply used for wake-on-lan.  If a power supply, it is very simple... replace it.  Make sure it has enough capacity on the 12volt rail for your number of disks.

If it is the MB simply replace it with a new MB, set the flash drive to be the boot device and go forward by assigning your disks back to their respective slots in the array.  Your data is still there.

 

Thank you both for the suggestions.  I have the disks labelled and I know which is the Parity drive.  Right now it is a headless server, but I can easily connect a monitor/keyboard.

 

I'll start the investigation in a few hours--and hopefully it is just the powersupply.

Update:

 

After sitting for 2-3 days, the unraid server powered up.  3 of the 6 drives were Unmounted upon initial boot up.  I let the everything run and the parity check complete.  However, the server was only showing a 4TB capacity (normally just under 10 TB).  Another reboot and everything is back to normal.

 

No idea what happened or why it wouldn't boot a few days ago--maybe heat due to the extended copy process?  I'll watch it carefully, but everything appears OK now.

 

Thank you again for all your help