Drobo updating boot support partitions

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In the image below, it's the "Storage Capacity." You can also approximate your "actual size" with the Drobolator.In my case, I've formatted my drive as a 16 TB drive and created a Time Machine backup sparseimage file capped at 1.2 TB.Using this method, you can safely set your Drobo to be a 2.0, 4.0, 8.0, or even a 16.0 TB drive.This size will be reported to the Finder and other applications as the available size of the disk, and theoretically if we see 8 TB disk drives at some point, you might even get there.Best Method: Use a Sparse Image By consensus, the "best" method is to use Time Machine's capabilities to back up not to the disk itself, but to a sparseimage file.A sparseimage file is like a DMG (disk image), but with some added special properties.If you never plan to increase the size of your Time Machine backup, you can use this to your advantage.

This isn't the most practical of methods, and it's fairly limiting.Additionally, because Drobos give you quite a bit more than half the storage space, it plays some tricks with your data to keep it safe.The long and the short of it is that once you get to about 95%1 of your actual maximum capacity (again, 1.35 TB in my case), the Drobo slows file copies to a crawl in order to run its proprietary routines that are designed to protect your data.Method Two: Format for Smaller Sizes If you use the Drobo Dashboard application to format your drive, you'll notice that it offers several choices for volume size: 1.0, 2.0, 4.0, 8.0, and 16.0 TB.If you create a volume that's larger than your "actual" storage space3, you'll get one volume that reports this increased size to the Finder and everything else.

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