Disk Subsystem Disks usually connected directly to computer system In Storage Area Networks(SAN),a large number of disks are connected by a high-speed network to a number of servers In Network Attached Storage (NAS)networked storage provides a file system interface using networked file system protocol,instead of providing a disk system interface Database System Concepts-6th Edition 10.15 @Silberschatz,Korth and SudarshanDatabase System Concepts - 6 10.15 ©Silberschatz, Korth and Sudarshan th Edition Disk Subsystem Disks usually connected directly to computer system In Storage Area Networks (SAN), a large number of disks are connected by a high-speed network to a number of servers In Network Attached Storage (NAS) networked storage provides a file system interface using networked file system protocol, instead of providing a disk system interface