Simultaneous read and write to a cube - critical issue

Hello xperts,
I am facing a critical issue.
I have Cube A which has loads of data in it. I need to take the data of CubeA to a new CubeB as a backup purpose.This activity will take a lot of time.
Concern1 - In the night we have the master data job which runs including the attribute change run job. Will this have any effect on the load happening from Cube A to Cube B.
Concern 2 - After master data job finishes in the system , we then run the transaction data jobs which would update Cube A with the delta data. Now the issue is can this delta load happen  to Cube A while there is data load going on from Cube A to Cube B??
Please help me out with this ASAP.
Thanks & Regards
Rohit

Rohit,
Attribute change runs will get affected only when you drop or rebuild the indices - this activity locks the cube - any activity that locks the cube will affect attribute change run - reads on a cube will not lock the cube.
However when you are loading data into your new cube - you cannot load data into the cube - for the very fact that when you load data into the cube - you will drop indices - this will affect the data load into the new cube.
Arun

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