SCSI “scuzzy”

SCSI (small computer system interface) is an interface standard used to attach peripheral devices such as storage disks to computers. While still used on some legacy devices, SCSI has largely been replaced by other device interfaces that have much higher throughput speed. More recent interfaces, particularly for disk drives, are the Serial Advanced Technology Attachment (SATA), Parallel ATA (PATA), and a newer version of SCSI called Serial Attached SCSI or SAS. For solid-state mass storage, versions of the Universal Serial Bus (USB) have been, and are being used. With much larger capacity (multi-terabyte) solid-state “drives” now widely available, an interface known as NVMe (Nonvolatile Memory Express) is increasingly popular and has replaced spinning magnetic disk drives and interfaces for many applications. Because of the current concerns about “write life” limitations of solid-state memory, spinning magnetic disk drives are still in use and their capacities have also increased with multi-terabyte versions readily available.