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Creating Large Repository - Multiple locations or turn off write caching policy?

Just installed Rapid Recovery 6.1 on Windows Server 2016.  Have 18.6TB of disk, wanted to create an 18TB repository. The error I'm receiving says you can't exceed 16TB with write caching policy on (and yes, I know I have to increase the cluster size). Saw that the recommended setting for Windows 2016 is to leave write caching on.

So I'm confused. Do I leave caching on and create two 9TB locations (example K:\Repo1\Loc1 and K:\Repo1\Loc2) to get 18TB repository?  That seems silly to me.  Do I turn caching off and create a 18TB repository?  Which doesn't seem right either.

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  • So there are 2 places to turn cache on or off. One on the hardware (volume) and one in the Storage Configuration when creating the Repository in RR. I have tried making a 43Tb repository with the hardware cache on and off with the Storage configuration on and get a failure every time, then I turn the cache off for the Storage Configuration and it succeeds both times. So the hardware cache is not an issue just the cache setting in the Storage Configuration for RR. Any idea of why that is an issue? Thanks.
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  • So there are 2 places to turn cache on or off. One on the hardware (volume) and one in the Storage Configuration when creating the Repository in RR. I have tried making a 43Tb repository with the hardware cache on and off with the Storage configuration on and get a failure every time, then I turn the cache off for the Storage Configuration and it succeeds both times. So the hardware cache is not an issue just the cache setting in the Storage Configuration for RR. Any idea of why that is an issue? Thanks.
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