x500Introduction to X.500 Directory Systems What is an X.500 Directory? An X.500 directory is a distributed, hierarchical database whose characteristics are defined in the InternationalX500 Server: Three SATA 1TB Hard Drives (RAID 0, RAID 1, RAID 5) Media Bay Super-multi DVD drive OR 2nd battery OR 2nd storage Card slots 1 x PC Card Type II,