Form factors set the form and fit of a computer's case, motherboard, power supply, and disk storage drive, the form factor sets the height, width, length, and the type and placement of its connector to the host computer. HDD device specifications include RPM, interface, access time, throughput, and IOPS. An HDD is a serial device and an SSD is a random-access device.
An SSD stores data in solid-state semiconductor chips and has no moving parts. SSDs use a SAS or SATA interface. Disk drive interfaces are word-serial or bit-serial and bit-oriented interfaces that connect through HBA, FC, SATA, and SAS. PATA uses parallel bit signaling . SATA uses serial bit signaling. SCSI provides a multiple-connection interface for several devices. SAS expands SCSI. NAS is clustered storage devices that appear as a network share. SAN is a network of storage devices and switches providing...
