Data Bay Indicators

Drobo storage devices utilize data bay indicators to inform you of the status of your Drobo. On 1st and 2nd Generation Drobo Drobo S and Drobo FS, these can be found to the right of each Data Bay. On DroboPro and DroboElite, the indicators can be found below the Data Bay. When all lights are green "everything is okay." If there is a yellow light, you are running low on protected capacity and you should add or upsize a hard drive with one of greater capacity at your convenience. A red indicator means you need to take action as soon as possible — you are critically low on space or are not protected against a single drive failure. A blinking red indicator means that a hard drive has failed.

Use the following chart to better understand what your Drobo is telling you:

Color and Light Behavior	What It Means	Action to Take
Green	Healthy system.	None
Yellow	Your Drobo storage device is getting full.	Add a hard drive or upsize the existing one with a larger capacity hard drive in the data bay with this indicator color.
Red	Protected space is critically low, or data protection against a single drive failure is no longer possible.	Add a hard drive or upsize the existing one with a larger capacity hard drive ASAP in the data bay with this indictor color.
Blinking Green and Yellow	Do not remove drives. The Drobo storage device is protecting your data by duplicating and spreading it across all of the available hard drives.	Don't remove any hard drives or power down your Drobo device. Warning: Removing a hard drive while green and yellow lights are blinking may cause data loss. Tip: You can continue to access your data while the Drobo storage device is protecting your data. Just do not remove a hard drive!
Blinking Red	A hard drive has failed.	Replace this hard drive ASAP.
All Red Indicators	Your Drobo product is starting up, there have been too many hard drives removed, too many hard drives have been replaced at the same time, or you have moved a set of drives that are not compatible with your Drobo storage device.	Wait a minute to make sure the Drobo device is done rebooting. If the indicators don't change to green, then you may have removed or replaced too many hard drives from your Drobo at the same time. Identify the hard drives removed and re-insert them into Drobo. If you need further assistance, refer to the User's Guide. You should also check that you are running the latest firmware on your Drobo storage device. You can check this in Advanced Controls > Tools. Tip: When removing or replacing hard drives, make sure you remove or replace them one at a time. Never remove a drive when the data bay indicators are blinking green and yellow.