What is the difference between SAS and SCSI? - ProProfs Discuss
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What is the difference between SAS and SCSI?

Asked by T. Lopez, Last updated: May 27, 2024

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4 Answers

R. Barnes

R. Barnes

I am a nature lover.

R. Barnes
R. Barnes, Professional Gamer, Graduation, Oakland

Answered Dec 04, 2020

SAS or Serial Attached SCSI, and SCSI or Small Computer System Interface are interfaces used within computers to get data stored in computers. Initially, SCSI was created to handle small data amounts.

However, it has been improved to support the transfer of large data amounts. With SCSI, you can connect more devices at the same time. Hard drives, CD-ROM drives, Printers are examples of devices that can connect to SCSI. On the other hand, SAS is a more recent technology than SCSI. You can also see it as an improved version of SCSI.

SAS was introduced to improve on some of the limitations of SCSI. For instance, SAS is a serial device rather than a parallel device like SCSI. As a result, you can connect more devices to your computer than you can do with SCSI. However, one of the advantages of SCSI over SAS is that it has a higher transfer speed.

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M. Porter

M. Porter

Here to relax my mind a bit

M. Porter
M. Porter, Senior Executive, Master of Art, San Jose

Answered Oct 22, 2020

SCIS and SAS are two types of interfaces. SCSI is an abbreviation for Small Computer System Interface. This interface was designed for computers that have a small amount of data to transfer. Over time, this interface has been upgraded to support the transfer of data, up to 320 Megabytes per second.

Overall, SCSI is a fast interface and it can be used to transfer data between different computers at one time. SAS is an abbreviation for Serial Attached SCSI. This interface came about to help improve on all the limitations that SCSI has, such as not being able to accommodate a lot of drives at once.

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I. Muller

I. Muller

I. Muller
I. Muller, Math Professor, North Carolina

Answered Oct 07, 2020

If in case you are not familiar with these, these are known to be common forms of hardware that your gadgets may have. SCSI means Small Computer System Interface while SAS means Serial Attached SCSI. The SAS is designed in such a way that it will be able to operate even if you would use it in full-duplex mode.

This will allow you to transmit data properly. SCSI is considered to be fast and it will be able to transmit data faster as compared to SAS. SCSI has been used for a long time and has been tested widely by a lot of people. SAS will be able to connect up to 128 devices easily.

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F. Ray

F. Ray

F. Ray
F. Ray, Student, Kansas City

Answered May 06, 2020

SCSI or Small Computer System Interface was initially designed to be by computers for small data transfer. However, it has been upgraded to support data transfer up to 320 Megabytes per second. SCSI is a pretty fast interface that can be used to transfer data to different devices that are connected to a computer at the same time.

However, as fast as SCSI is, one of the limitations it has is that it can only be used independently by computers due to the fact that the BOIS system support in it is quite limited in capacity. On the other hand, SAS or Serial Attached SCSI was designed to improve on all the limitations of SCSI.

The fact that SAS is a serial interface is the reason why it can efficiently control all the drives that are attached to it. SAS is equipped with the capacity to accommodate up to 128 different drives at a time.

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