The issue is solved for me…I bought a one off incident ticket…
Basically, it was a dual disk failure…apparently, when one fails it is common for multiple failures…I had only single disk redundancy…
Basically had to run a diagnostic report for the support team to work out which drives were the issue, then need to block clone that drive…
Once I cloned it I had to put the Drobo FS into Read only mode (RO), see below
1. Whether you have the drive professionally cloned or clone it yourself you will need to flush the Drobo’s internal cache for that drive as follows :
- With the Drobo powered off eject all of the drives EXCEPT the drive to be cloned.
- Power the Drobo on
- Once the Dashboard recognizes Drobo, use Shutdown in Drobo Dashboard > Tools to Shutdown Drobo.
Note: Please ignore any warnings about too many hard drives removed.
2. Cloning :
If you decide to proceed with cloning the drive yourself, you will need;
- A known good drive that is the same capacity as the problem drive.
- Make sure there is no data that you need on this new drive as it will be overwritten during the cloning process.
- To clone the problem drive you will need to connect new drive and problem drive to free (empty) drive bays in your computer or into external drive docks that can be attached to the computer.
Do not format or initialize the drives .
- You will need software that is capable of performing a block level clone. (You can use any cloning software that can-do block level clones and supports drives larger than 1TB.)
- For Mac, we suggest that you download and install the DEMO version of Data Rescue 3 . Instructions for using the software can be found here:
Note : The cloning process can sometimes take hours or several days to complete depending on the condition of the problem drive.
3. Once the cloning process is successful ;
- Power on the Drobo without drives installed.
- Go to Drobo Dashboard > Tool and do key stroke command:
- Put Drobo into Read Only Mode as follows:
Simultaneous Keystroke command :
Restart the Drobo as prompted from Dashboard, if not prompted power off the Drobo using toggle switch on back of Drobo then power back on.
- After the Drobo has restarted go to Drobo Dashboard and verify that you see RO next to the name of the Drobo in the Status tab.
- Once RO has been verified, power the Drobo off
- If not in RO mode, do NOT proceed
- If in RO mode, Insert the good cloned drive into Drobo along with the remaining original hard drives
- Power on the Drobo
4. Reply to this email with the following information :
- Status of all Drobo lights:
Drive Bay Lights (color, solid or blinking)
Capacity Lights (solid or blinking)
Power Light (color)
- Does the Dashboard detect the Drobo?
- Generate a diagnostic file so Support may confirm it is safe to take out of Read Only (mode)