1TB actual usage vs 8 TB in Dashboard

Hi all,

I have four (4) 3TB drives in a Drobo 5D which, according to the Capacity Calculator, should yield 8.17 TB available for data.

My actual usage is less than 1 TB - mostly for iTunes and RAW images.

According to the Drobo Dashboard, I’m nearly maxed-out with 3 GB left.

I am running Mac OX Yosemite. Drobo Dashboard and firmware are all up to date.

Can anyone help explain what’s going on and how to address this?

Regards,

jssales

[quote=“jssales@mac.com, post:1, topic:140269”]
I have four (4) 3TB drives in a Drobo 5D which, according to the Capacity Calculator, should yield 8.17 TB available for data.
My actual usage is less than 1 TB - mostly for iTunes and RAW images.
According to the Drobo Dashboard, I’m nearly maxed-out with 3 GB left.[/quote]

Do you have Dual Disk Redundancy turned on?

[quote=“DSLAM, post:2, topic:140269”]

No, Dual Disk Redundancy is off.

Not sure then. You’ll have to use some file and folder analyzing tool for mac and see what’s eating up all your file space. This is assuming all the drives are not faulty of course.

What exactly does it say about storage usage per drive? In the Capacity tab of your Dashboard, click on the “Usage” button in the top-right corner (the bar chart, not the pie chart). There should be the sentence “How your storage is being used:” followed by “Drives 3TB+3TB+3TB+3TB=12TB(some less actual)”, followed by a graph splitting things up into “Available for data”, “Reserved for expansion” and “Used for protection”. Maybe something in that info helps shedding some light onto the issue.