A memory card cooperating with a network interface for receiving data entry
and update signals from a database manager via a switch fabric and with a
bus interface for outputting data on a system bus disposed in a system
shelf, which shelf forms at least a portion of a telecommunications node
having a distributed scalable database system. The memory card is operable
to contain at least a portion of the distributed database in a high speed,
high density memory block disposed thereon, which memory block is coupled
to a network interface controller via a first memory interface and to a
bus interface controller via a second memory interface. An arbiter is
coupled to the first and second memory interfaces for arbitrating data
input operations and data output operations with respect to the memory
block.