SATA stands for Serial Advanced Technology Attachment, and SAS stands for Serial Attached SCSI (SCSI means Small Computer System Interface). They are two types of interface used to transfer data to and from hard drives. Let’s know more about sas vs sata.
Although SATA and sas drive refer to the data transfer interface, they can also describe these two types of hard drives. It is important to note that lets talk about traditional ‘spinning’ hard drives for this post, as opposed to SSD drives.
SATA drives the most popular format is 7.2K, while for SAS, there are two main types: 10K and 15K. The ‘K’ refers to the speed at which the rotating discs rotate.
The big difference between them is that sas drive are faster and more reliable than SATA drives.
The best measure to evaluate speed is IOPS (Inputs Outputs Per Second), which expresses the amount of data that can be written and read on a disk. The industry accepts that the average value of 7.2K SATA disks is 80 IOPS, while 10K SAS offers approximately 120 IOS and 15K yields about 180 IOPS. They are averages based on both low and heavy workloads.
sas drive tend to be used for advanced computing, where high speed and high availability are crucial, such as banking and e-Commerce.
SATA drives tend to be used for office or user-level work, with less demanding roles, such as data storage and backups.
SAS drives are more reliable than SATA drives. The industry accepts that the mean time between failure (MTBF) of SAS drives is 1.2 million hours, while the MTBF of SATA is 700,000 hours.
From a physical point of view, data cables are significantly different. SATA cables are limited to one meter in length and data and electricity are separated, while SAS cables can be as long as 10 meters, with supplied electricity and data traveling over the same cable.
In terms of capacity, on the other hand, SATA drives win. 3TB SATA drives are not uncommon and there are 8TB drives in 3.5-inch format. And they are cheaper from 1TB to 3TB. sas hdd, on the other hand, tend to give a maximum of 900GB, although the most common configuration is usually around 450GB or 500GB.
What are SATA hard drives?
SATA stands for Serial Advanced Technology Attachment. It is also called Serial SATA.It allows data exchange between computer buses and storage devices.
SATA hard drives are large in capacity and inexpensive and are economical in the 1 TB to 3 TB range. Moreover, they are commonly used in personal computers and data storage.
What are SAS hard drives?
SAS stands for Serial Attached SCSI, long form for SCSI – Small Computer System Interface. SAS technology helps transfer data from hard drives to device and transfer data from device to hard drive. The sas hard drive is a SAS hard drive. SAS hard drives provide high speed and high reliability. Therefore, it is more suitable for enterprise applications. These some points will tell you about the different between sas vs sata.
There are two types of SAS hard drives: 10K and 15K. K stands for the number of rotations per unit of time. In other words, there are 10,000 and 15,000 rpm, respectively. SAS drives range from 300GB to 900GB. In addition, SAS drives consume 5 to 7 watts in standby mode and 10 to 14 watts during normal use.
SATA is a hard drive that supports SATA technology for connecting host bus adapters to storage devices such as hard drives, optical drives, and solid state drives, while SAS is a hard drive that supports SAS technology for transferring data between devices … Thus, this is the fundamental difference between SATA and SAS hard drives.
In addition, the SATA drive capacity is higher than that of SAS hard drives.
Reliability is another difference between SATA and SAS hard drives. SAS hard drives are more valid than SATA drives.
In addition, another difference between SATA and SAS hard drives is that SAS drives are faster than SATA drives.
Typically SATA drives are 7.2KB in size, while SAS drives are of two types: 10KB and 15KB.
SAS drives have more bandwidth than SATA drives.
Cable size is another difference between SATA and sas hdds . SATA cables are about 1 meter long and SAS cables are about 10 meters long.
What’s more, SATA is cheaper than SAS.
Finally, SATA is suitable for the consumer market (storage, backups, desktops, etc.), while SAS is suitable for enterprise applications.