Storage Interfaces Disk interface standards families ·SATA(Serial ATA) SATA 3 supports data transfer speeds of up to 6 gigabits/sec SAS (Serial Attached SCSI) SAS Version 3 supports 12 gigabits/sec NVMe (Non-Volatile Memory Express)interface Works with PCle connectors to support lower latency and higher transfer rates Supports data transfer rates of up to 24 gigabits/sec 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-7th Edition 12.5 @Silberschatz,Korth and SudarshanDatabase System Concepts - 7 12.5 ©Silberschatz, Korth and Sudarshan th Edition Storage Interfaces ▪ Disk interface standards families • SATA (Serial ATA) ▪ SATA 3 supports data transfer speeds of up to 6 gigabits/sec • SAS (Serial Attached SCSI) ▪ SAS Version 3 supports 12 gigabits/sec • NVMe (Non-Volatile Memory Express) interface ▪ Works with PCIe connectors to support lower latency and higher transfer rates ▪ Supports data transfer rates of up to 24 gigabits/sec ▪ 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