unRAID's signature on the MBR failed

[chrishorton7 0]

Hi,

 

A couple of weeks ago I had a drive suddenly show red ball against. I bought a new drive to replace, but when I run the new drive through pre-clear I am getting the following error:

 

unRAID's signature on the MBR failed

 

The drive then dissapears as an option to pre-clear, although still shows on the main screen under unassigned disks.

 

I thought it might have been the SATA cable so replaced this but I'm still getting the same issue.

 

Logs are attached.

 

Any advice on things i can try, I don't think its anything to do with the disk itself.

tower-diagnostics-20170128-2003.zip

[John_M 208]

Disk WDC_WD30EFRX-68EUZN0_WD-WCC4N5UDYRA8 has dropped off-line so there's no SMART report for it. Shut down, check cables to it and restart, then grab new diagnostics and post.

 

[garycase 55]

As John noted, there's no SMART info available for what I assume is your new disk ... so you've either got a defective drive or you have a cabling issue.

 

Try the cables first.  If you have a PC available with a spare SATA port (or a USB dock, although direct SATA connection is preferable), you might run WD's Data Lifeguard on the drive and confirm it passes both the Quick and Extended tests.

 

[chrishorton7 0]

Thanks both, I don't have a PC with SATA cable to do the WD diagnostics unfortunately.

 

I have just downloaded a SMART report from the Unraid 'Main' section which is attached. I'm popping out now, but later on will shut down and restart and get full diagnostics then to post.

tower-smart-20170129-0928.zip

[John_M 208]

That SMART report was empty. The disk will stay offline until you power cycle it. But while it's powered off check the cables.

 

[garycase 55]

Thanks both, I don't have a PC with SATA cable to do the WD diagnostics unfortunately.

 

Then just use a USB dock => if you don't have one, just buy one ... they're (a) very inexpensive; and (b) very handy to have.

https://www.amazon.com/Cable-Matters-Drive-Docking-Station/dp/B0099TX7O4/ref=sr_1_3?ie=UTF8&qid=1485719781&sr=8-3&keywords=usb+hard+drive+dock