My 5D gave up the ghost and I needed to recover data from it so I’ve purchased an exact replacement and put the drives in it.
As a part of the failure of the old one one of the drives has also failed. The drive array was
One of the 6TG drives failed and I suspect there is too much data for the remaining drives to rebuild without a drive in bay 0. When I power on without a drive in Bay 0 the device completes the boot, is detected by the dashboard lights are all green, capacity shows 100% and I can see the data and am able to drag files off to my pc a few at a time with transfer speeds in the 100s Mb/s
After a few seconds the lights all flash amber and green and a minute or so later it just switches off and then reboots and repeats.
When I put a replacement 6TB drive in 0-Bay the device powers on and is detected in the Dashboard all lights red and Volumes shows
Restart using Tools displays the same.
If I put a different 6TB drive in Bay 0 I get all lights amber and the device is not detected by the dashboard.
Very intermittant performance, first boot detected no drive in bays 2-4. Powered off, ejected all drives and pushed firmly back in place and restarted.
So now back with 6,6,3,3,3 all detected but flashing amber/green and switch off suddenly after 30-60 seconds. Very frustrating as I can see the data but not long enough to be able to get it off.
Beginning to wonder about the Drive 0 in your ‘new’ Drobo 5D.
Assuming your dashboard and firmware is up to date, can you turnoff the Drobo, extract all HDDs, and then add 2x spare 2TB (or smaller drives) into Drive 0 & 1 and restart?
If the Drobo completes the formatting and you can view the new volume then that would check off that concern on Drive 0. Can you report back?
Latest restart (before seeing your reply) is showing all five bays solid amber, the only thing different is the usb cable isn’t plugged into my laptop so I can’t see any progress if anything is happening.
If a key outcome is the ability to access your data and copy it to an external source, then look to connecting to your Drobo in its current state. The solid amber lights are telling you that you need to upsize soon but should still be able to read the data. Avoid writing to the array.
See whether you get access in this current state via your USB. Not sure if your PC accepts a thunderbolt 2 cable as that would be useful alternate data path.
If you don’t hear (or feel) any HDD ‘chatter’ then they are not doing anything.
I would want to check Drive 0 next.
Keep track of where each HDD was placed before you extract them.
The exercise is to validate your Drobo drive - if that can be established then a focus moves onto the HDDs.
Hi I’ve finally had a chance to do as you suggested.
I’ve removed all drives and put two different disks in bays 0 and 1
Currently showing green and if I format them I guess they’ll become available for use.
Incidentaly I had several spare drives which I put in the old Drobo case and once I’d run the Erase & Factory Reset the old device became useable.
This would suggest to me that the old device was never an issue just the drives as the replacement Drobo is doing the same as the old one.
To give you some additional background. The original device had 5x3TB in June of last year. One of the drives failed Bay-1 and at the same time we were aware the whole array was almost at 100%. I replaced the failed drive with a new 6TB drive, waited for data to rebuild and then replaced the drive in Bay-0 with a 6TB drive. All data was verified and the device ran in situ for several months with several TB free.
Unfortunately the new 6TB drive in bay 1 failed completely. I tried to replace with a replacement 6TB but the device wouldn’t remain powered on. I tried several other 6TB drives with the same issue and suspected the Drobo device itself and sourced a replacement but as you can tell this was not the issue.
Not sure where to go from here, so any advice welcome.
Usually if 1 HDD has failed, an array can still be read, and data retrieved, but there would be no data protection. If you have not done already, reinsert your full array back into you preferred Drobo and restart. You may regain access to the data with 1 red and 4 green/yellow lights but the data would be accessible from the Drobo dashboard.
If that does not work, your only other recommendation is to have your bad drive commercially replicated before the replacement drive can be ‘read’ as part of the overall array.
Perhaps look to connect your Drobo to another computer or laptop to check whether the data can be accessed? Other than that, as wild as it sounds I would again switch off and reformat your 2 spare HDDs, turn off, then reinsert the array again and restart. Its internal system may be a bit fried from the constant restarts.
I’ve found that it stays on for about 5 minutes which is long enough to begin recovering the data before it restarts. After about 10 restarts it just hangs so I switch off remove all drives and restart, shutdown, put drives back in and it’s back to the cycle etc.
On a further point, one of the other drives I’ve tested o=in another drobo now show “Warning, detected drive from another disk pack”. What can I do to “free” the drive for reuse in this array or just for storage without a Drobo?