A system includes a first database, a second database, a first processor, a second processor, a third processor, and a fourth processor. The first database includes a first segment assigned to the first processor and a first transaction type and a second segment assigned to the second processor and a second transaction type. Each of the first and second processors receives a request, assigned to its associated transaction type, from the third hardware processor, to store data in the first database. The processor then writes the data into the segment of first database assigned to the processor/transaction type. The processor further stores a command to write the data into the second database in a queue. The fourth processor then executes the commands stored in the queue, thereby writing the data into the second database.