Information on the internet is like a never-ending quest. Data is slowly taking over. You can name it, and we have it right in our pocket: images, audio, video, apps, and whatnot. And VPS Servers are used by many companies to store their applications online so that they can be easily accessible whenever needed.
There are 2 major storage devices used in today’s information age: Hard Disk Drive (HDD) and Solid State Drive (SSDs). So, if you wanted to know what is so different about the two of them, you are in the right place.
Hard Disk Drive (HDD)
Hard disk drives have been serving us for about 50 years now. The technology used in it is well-tested and well known. It is steadily increasing the storage capacity and also decreasing its time with time. There are spinning disks that are used to read and write data.
How does it work?
HDD consist of an actuator arm, magnetically sensitive platters, a motor to spin the platters and an actuator read and write arm for each platter. An I/O Controller or firmware is also present to inform the hardware about the next set of tasks to perform. It also informs the other parts of the system.
The platters on the HDD are organized into concentric circles called tracks. The logical units on tracks are known as sectors. The unique number on track and sector is combined together to organize and locate data on the disk. It writes data on the nearest available area.
Every time you ask the system to read or write data, the I/O controller asks the actuator arm to locate the requested data, and read/write head collects the data by reading that particular address. If you request an update, the read/write head changes the charge on the affected track and sector.
- Less expensive as compared to SSD
- Proven and well-known technology
- Available in more storage spaces
- Energy consumption is higher than SSDs
- Heavier as compared to SSDs.
Solid State Drives (SSDs)
SSDs run on the concept of flash memories. Due to moving mechanical parts in HDDs like the spinning platters, spindles and so on, things might go wrong easily, and you could lose crucial website data. With SSDs, that is not the case. Due to the use of flash memory and no moving parts, SSD offers durability and delivers superior performance.
How does it work?
The base technology that SSD use is that of a USB drive. NAND is a flash memory technology that is used in SSDs. If you want to understand NAND at the lowest level, it is a floating gate transistor that records a charge to store data. These gates are organized into a grid pattern which further forms a block. Every row that makes up the grid is known as a page. Block sizes can be different according to the requirement.
Updating data is much more complex on SSDs than HDDs. When you update any portion of data on the block, all …