SAS vs SATA: What’s the difference? SAS and SATA are two technologies used by computers to transfer data from the motherboard to the storage and vice versa. Both technologies do many of the same things, but each is built with different hardware. SAS is generally more expensive and more suitable for use in servers or workstations with high processing loads. SATA is cheaper and more suitable for office file storage. So what exactly are SAS and SATA? Are they hard drives? Are the cables? Can you buy them at an electronics store? Why do you need to buy them? CPU
First you have the vicinity of the CPU. This is where the town hall is located. The CPU runs the entire city of St. Packard and issued all sorts of guidelines that the city had to follow.
GPU
Another important area is the GPU. GPUs are at the heart of St. Packard, is basically the Hollywood of the city. The GPU creates all the images that appear on your computer screen. 2. STORAGE
A large suburb is located on the outskirts of the motherboard. This is called “storage”. Like the actual suburbs, the archives are home to many people who settle down and live quiet lives. 3. CONNECTION
The connectors are St. Packard. They connect all the neighborhoods together. In the real world, roads are usually concrete or asphalt. In computers, lines are metal, like copper wire. The car runs smoothly on the asphalt road. Likewise, electricity moves smoothly across metal surfaces. 4. PHOTO CODE
Binary code is the language spoken in St. Packard. It’s a simple language of just 2 numbers: 0 and 1. Everything on your computer – documents, photos, videos, software, web browsers, images – is made up of a unique combination of 0 and 1 [ 2 ]. 5. BYTE
Let’s talk about the people who live in the city. Each individual is called an “octet”. One byte is data. Everything on your computer – again, documents, photos, videos, software, web browsers, images – is made up of bytes.
GPU
Another important area is the GPU. GPUs are at the heart of St. Packard, is basically the Hollywood of the city. The GPU generates all the images displayed on your computer screen. 2. STORAGE
A large suburb is located on the outskirts of the motherboard. This is called “storage”. Like the actual suburbs, the archives are where many people settle down and live a quiet life. 3. CONNECTION
The connectors are St. Packard. They connect all the neighborhoods together. In the real world, roads are usually concrete or asphalt. In computers, lines are metal, like copper wire. The car runs smoothly on the asphalt road. Likewise, electricity moves smoothly across metal surfaces. 4. PHOTO CODE
Binary code is the language spoken in St. Packard. It’s a simple language consisting of only 2 digits: 0 and 1. Everything on your computer – documents, photos, videos, software, web browsers, images – is made up of a unique combination of 0 and 1 [2]. 5. BYTE
Let’s talk about the people who live in the city. Each individual is called an “octet”. One byte is data. Everything on your computer – again, documents, photos, videos, software, web browsers, images – is made up of bytes. One of the highways in your computer connects the motherboard to the storage. This is where SAS and SATA come in. SAS and SATA
Likewise, both SAS and SATA are highways. But each is built a little differently, and so the circulation speed on each is different [3]. seven. Parallel VS Sequential COMMUNICATION
Both SAS and SATA use serial communication. Serial communication means highways with northbound and southbound lanes (or eastbound and westbound):
Data can be transferred from the motherboard to the storage. Data can be transferred from the storage to the motherboard. Serial communication has replaced parallel communication, which is now obsolete in most computers. In the days of parallel communication, incoming and outgoing data were transmitted over separate cables. Imagine there are 2 highways, one with only a northbound lane and the other with a southbound lane only, with the highways one mile apart. The good thing about parallel communication is that each highway has multiple lanes and can handle more traffic at the same time. But there was a problem:
The cables are large. Some cables take up a lot of space inside the computer. There is another big problem. The current creates a small magnetic field. When two cables are parallel to each other, their magnetic fields interfere with each other’s data transmission. This causes data to be communicated more slowly, sometimes not at all. Serial communication solves the following problems:
Smaller cables, giving computer manufacturers more flexibility when designing computer architectures. The cables are built with a “splitter” that prevents magnetic interference. The serial communication allows the storage disk to queue for incoming data. [4]
Why SATA is better for storage If file storage is one of your priorities, then you should buy a computer or an external hard drive that uses a SATA data transfer connection. This is why SATA works better for PC storage. READ/WRITE SPEED
SATA works best when data is being transferred in the storage drive. It works at a slower rate when transferring data out of the storage drive. For this reason, SATA is a great technology to have in your computer if you store information that you don’t need to use often. So, if you store a lot of data on your PC or on an external drive, consider buying a PC or drive with built-in SATA components. STORAGE
CAPACITY
SATA has huge storage capacity, and that’s another reason why it’s a great component for your PC or external drive. PRICE
SATA hardware is less complex than SAS hardware, so it tends to be cheaper. This means that PCs and external drives using SATA technology also tend to be cheaper [6]. Why SAS is better for servers and workstations
SAS IS IDEAL FOR 2 PURPOSE:
Waiter
Personal workplace
If you’re setting up a server for use by an office complex or small business, buy a server and hard drive that uses SAS technology. SAS is also a good component to have in your computer if you use your computer for intensive work, such as video editing, visual effects, or animation. This is why SAS works well for creative servers and workstations. READ/WRITE SPEED
SAS is a faster technology than SATA because it moves data out of storage as fast as it moves data into storage. Servers and workstations rely heavily on data transmission, so it’s good to have hardware that can send and receive information at fast speeds. STORAGE CAPACITY
SAS doesn’t have as much storage capacity as SATA, but that’s not necessary. Servers use many different hard drives, so they will have the same storage capacity of all hard drives. And most creative professionals use multiple hard drives. PRICE
SAS hardware is more complex and therefore more expensive. On the plus side, SAS hardware is more durable than SATA. MTBF (mean time before failure) of SATA is 1.2 to 1.6 million hours. This means that SATA technology is capable of operating for over a million hours before needing to be replaced [7].
SMART TECHNOLOGY
SAS is built with built-in technologies that make it especially useful for servers and workstations. Hard drives are built with SAS connectors housed in a “SCSI enclosure”.
The SCSI enclosure is a piece of hardware that helps your hard drive handle traffic in and out on the SAS highway. If there is a fault in the hardware, the SCSI enclosure program can find it and report it. WHAT IS A STRIKE? SCSI programming uses RAID to protect against data loss. When working with data that has not been saved to storage, SCSI ensures that all data exists on multiple disks, so that if one disk fails, the data will persist on another. This process is called RAID (Redundant Array of Independent Disks). You can also run RAID on SATA technology, but it is more efficient on SAS technology because SAS connects more circuits. Servers and workstations perform too many transient data transfers, requiring technology that supports RAID [8]. The ultimate capability of SAS is that it allows multipath input/output (I/O). Since SAS technology typically connects multiple circuit elements, it can reroute data over the secondary highway if the primary highway fails. This is an important feature to have in very large interconnected systems, like servers [9]. SSD Performance for SAS and SATA
There are 2 MAIN TYPES of HARD DRIVES:
Hard Disk (HDD)
Solid State Drive (SSD)
A hard drive looks a bit like a tape recorder. There is an actuator arm that uses solenoid to write data to a rotating platter. SSDs have no moving parts and instead use small chips to store data. What is the best? Hard drives typically have more storage capacity, but SSDs are faster. The hard drive must wait for the platter to rotate to the correct position before reading or writing data. The SSD has no moving parts that it has to line up, so its read/write speeds are uniformly faster [10]. SSD SAS and SSD SATA are faster than HDD. However, they do share one characteristic: SATA is always faster at writing data, while SAS is faster at reading and writing data continuously.