Question: A database is stored on ten 9-GB RAID 1 LUNs. A cascade three-site remote replication solution involving a synchronous and disk-buffered solution has been chosen

A database is stored on ten 9-GB RAID 1 LUNs. A cascade three-site remote replication solution involving a synchronous and disk-buffered solution has been chosen for disaster recovery. All the LUNs involved in the solution have RAID 1 protection. Calculate the total amount of raw capacity required for this solution.

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