![]() ![]() My small home server has TruNAS running virtualized in ESXi (that's not very relevant, just putting it here) with three 4TB WD Reds (the basic old ones) in RAIDz1. “SAS-drive” By Frettled – Own work (CC BY-SA 4.I've been thinking about upgrading the speeds a little bit lately, but SSDs seem to be mostly out of the question in such capacities I have in mind. “MSATA SSD on top of a 2.5″ SATA HDD” By Bdortiz1076 – iPhone camera (CC0) via Commons WikimediaĢ. “What Is a SAS Hard Drive?” Pickaweb,, Available here. “Serial ATA.” Wikipedia, Wikimedia Foundation, 4 Jan. In brief, SATA is appropriate for general use while SAS is suitable for enterprise-level such as for high-end server hardware, etc. The main difference between SATA and SAS Hard Drives is that SAS drives are faster and reliable than SATA drives. SATA and SAS are two hard drive types that support exchanging data between devices. Applicationįinally, SATA is suitable for the consumer market (data storage, backups, desktops, etc.) while SAS is suitable for enterprise applications. SATA cables are around 1-meter-long while SAS cables are around 10 meters in length. Cable SizeĬable size is another difference between SATA and SAS Hard Drives. SAS drives have more bandwidth throughput than SATA drives. Usually, SATA drives are 7.2K while SAS is of two types: 10K and 15K. Speedįurthermore, one other difference between SATA and SAS Hard Drives is that SAS drives are faster than SATA drives. SAS hard drives are more reliable than SATA drives. Reliability is another difference between SATA and SAS Hard Drives. CapacityĪlso, the capacity of SATA drive is higher than that of SAS hard drives. SATA stands for Serial Advanced Technology Attachment while SAS stands for Serial Attached SCSI (SCSI stands for Small Computer System Interface). Thus, this is the fundamental difference between SATA and SAS Hard Drives. SATA is a hard drive which supports SATA technology to connect host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives while SAS is a hard drive which supports SAS technology for transferring data among devices. Moreover, SAS drives consume around 5 to 7 Watts when idle, and 10 to 14 Watts in the usual operating conditions.ĭifference Between SATA and SAS Hard Drives Definition The disk range of SAS differs from 300GB to 900GB. ![]() In other words, there are 1000 revolutions per minute accordingly. The K denotes the number of rotations per time unit. There are two types of SAS hard drives as 10K and 15K. Therefore, it is more suitable for enterprise applications. SAS hard drives provide high speed and high level of reliability. The hard drive that supports SAS technology is a SAS Hard drive. SAS technology helps to transfer data from hard drives to the device and to transfer data from the device to the hard drive. The long form for SCSI is Small Computer System Interface. Moreover, they are commonly used in personal computing and data storage. They are cost-effective in 1TB to 3TB range. SATA hard drives have a higher capacity and are inexpensive. A hard drive that supports SATA technology is a SATA hard drive. It allows exchanging data among computer buses and storage devices. SATA stands for Serial Advanced Technology Attachment. Hard Drives, SATA Hard Drives, SAS Hard Drives ![]() – Comparison of Key Differences Key Terms What is the Difference Between SATA and SAS Hard Drives On the other hand, SATA is more ideal for regular use such as data storage and backups. Therefore, it is suitable for enterprise-level computing. SAS has a high speed and is more reliable. A hard drive that supports SATA is a SATA hard drive while a hard drive that supports SAS hard drive. SATA and SAS are two technologies that allow transferring data to and from hard drives. The main difference between SATA and SAS Hard Drives is that SAS drives are faster and more reliable than SATA drives. ![]()
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