How do Solid State Disks (SSDs) work?
Traditionally, hard discs are kept in the sectors above the plates. These plates are rotated by the motors in the hard disk and read by the read / write head. In SSDs, the data is stored in NAND flash chips. The memory chips in the SSDs run fast, just like the RAMs in our computers.
What are the advantages of Solid State Disk (SSD)?
1- Your computer opens faster.
2- Extremely low read and write latencies.
3- Faster random access time.
4- Low power consumption and heat generation.
5- Better mechanical reliability.
6- More stable performance
7- It does not need to defragment the disk.
8- Smaller size and lighter
9- The speed of file access is very high.
10- More performance in games and applications
What are the disadvantages of Solid State Disk (SSD)?
1 – Solid state disks (SSDs) are currently low in capacity and quite expensive in terms of price. It is certain that mechanical discs will soon be available, but for now it does not make much sense for home users.
2- It is a disadvantage that the magnetic field and the static electricity are more unstable than the mechanical hard disks.
3- A disadvantage of SSDs is that the write-erase life is around 10,000 to 15,000 processes. . What are the things to watch out for before buying?
1- Take care that your sd dyskin checkers are known brands such as Intel, Jmicro, Samsung, Sandforce, Alcor.
2- Note that the ssd harddiskin flash memory chip type you will pick (MLC Yada SLC)
3- Do not forget to examine technical data such as sd, harddisk reading and writing times.
4- Find out whether your ssd includes harddisk “Wear Leveling Algorithms” technologies. Wear Leveling Algorithms What is Wear Leveling Algorithms? Review your title.
5- Find out if you have “trim” support on the ssd harddisk. Trim support what is Trim support? Review the title below.
What is Wear Leveling Algorithms?
Wear Leveling Algorithms is a technology developed to extend the lifetime of an average write-erase process size of about 10,000 to 15,000 processes in SSDs … Written data is distributed to all cells in the disk, no matter how full. In this way, certain cells are prevented from premature wear and deterioration. The life of an SSD can be extended to a large extent thanks to this technique. Without this load-sharing system, the life of a heavily used SSD can be as short as six months. With this system, the duration of the diskin is 5 to 10 years longer. There is a disadvantage that the room data is distributed throughout the hard drive, so there is a performance drop.
What is trim support?
In operating systems prior to Windows 7, you can only virtually delete the file on the SSD and hard disks. In fact, the data blocks of that file remain on the disk until another data is overwritten. Blocks that seem to have been deleted on conventional hard drives can be easily written on the rewritable discs, so 4KB blocks of cells must be absolutely empty so that SSDs can write data again. For rewriting without TRIM support, the data in the cell blocks must first be read, then deleted, and finally stored in the cells that have been emptied. Thanks to the TRIM command that comes with windows 7, diskette files are completely erased from the flash chip cells and your disciples will not waste their time dealing with these operations.