Tuesday, 23 July 2013

Mini SAS & SATA: Key to Increasing Performance without Increasing Cost

Mini SAS and SATA are the standard connecting serial protocols that meet the current enterprise solution of mass data transfer and storage. They reliably perform to the demanding requirements of high speed data storage, offering more reliability and data integrity. In the past, most storage systems used the parallel bus interface. But serial technology has many advantages when compared to parallel technology. It allows the flow of data in single stream by wrapping bits of data into packets and has the capability to transfer many times faster than the parallel technique.

Mini SAS to SATA works as a successor to the older parallel SCSI and ATA technologies. SATA (Serial ATA) extends over the ATA (advanced technology attachment) by delivering 1.5G bps interconnection starting speed and integrates easily with the capabilities of SAS (serial attached SCSI). SAS improves in speed dramatically over SCSI (small computer system interface). SATA continues to make inroads with its low cost per gigabytes into networked storage systems, sub- entry servers or in desktop computers.  SAS offers the improved drive address ability up to 16,256 devices per port and expands the connectivity with the speed of 6G bps. This small connector is also supported in dual ported applications. Mini SAS allows the connectivity up to 128 physical links including host connections.

Connector signals of SATA are the subset of SAS signals, and this advancement supports the compatibility of SAS interface with lower cost SATA drives. SAS has become a universally accepted interconnection, so system builders can easily integrate either SAS or SATA devices depending on their customer’s specific requirement. This flexibility greatly expands the range of products a system builder can offer.

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