Do you want to partition your SSD? Is solid state hard disk partition good or not?

Do you want to partition your SSD? Some people say that SSD is best not to partition, will affect the use of performance and life, is this so? On the SSD is good or not partition good, is a more interesting question, which will involve a lot of SSD related knowledge, the following small series to detailed introduction.

　　Do you want to partition your SSD?

First, the partition has no negative effect on the life span of SSD, in short, the solid-state hard disk and the mechanical hard disk, can be partitioned, do not worry about life. If an SSD partition affects life or performance, it is only possible that the SSD manufacturer has a problem with the design.

Therefore, the use of solid-state hard disk principle is, want to partition on the partition, does not relate to life and performance. For example, SSD capacity is larger, then more divided into several areas, if the SSD capacity is small, less divided into several areas.

　　Is solid state hard disk partition good or not?

In the case of small series, if the computer only solid state drive, and SSD capacity is large, zoning is still very necessary. The advantage of SSD partitioning is that you can differentiate the system disk from the storage disk, and the reload system will not lose data from other disks. However, if the SSD is not partitioned, the reload system will be more cumbersome to consider backing up the data.

If the SSD capacity is small, and the computer also has a mechanical hard disk, SSD mainly do system disk, the division does not matter. In addition, there has been a SSDs in the industry said: solid-state hard disk to small zoning and less zoning, we can see the understanding.

SSD has a technology called "garbage collection mechanism", trim is the system used to tell the SSD master which data occupy the address is "invalid", and "garbage collection mechanism" is within the SSD of these "invalid" data clean-up process.

The erase in SSD can only be "destroy the entire area where the invalid data is located", the "point to point pinpoint strike" can not be implemented as a mechanical hard drive, so the process of "garbage collection" is cumbersome--first, to centralize the effective data in the area, to move to an idle location, and then to remove the problem area. The cleared place can be used as a staging point for the next garbage collection.

So the concept of "small zoning" came out. The so-called "small partition" is not to the SSD capacity is full, retain part of the capacity as "idle location" for the internal SSD optimization operations, such as wear balance, garbage collection and bad block mapping. In general, this step manufacturers have helped us set up, such as NAND capacity of 128G SSD, the manufacturer logo said 120G, the rest of the part was set up to reserve space. Of course, if you pay attention to SSD performance, you can continue to increase the space on this basis, such as: 128G Solid state hard disk in the partition when only 120G or less.

"Less partitioning" is another concept that concerns the impact of 4k alignment on SSDs. On the one hand, the mainstream SSD capacity is not very large, the more the partition means that the more wasted space (each partition has a lot of space is not used), on the other hand partitioning too much easily lead to partition dislocation, in the partition boundary of the disk area SSD performance may be affected. such as: 128G Solid State hard disk divided into 2 partitions, 256G 2-4 partition is advisable.

In addition, the more performance of solid-state hard disk storage is slower, and if a partition is permanently in use over 90%, the likelihood of a solid-state hard disk crash will increase significantly. So in time to clean up the useless files, set the appropriate virtual memory size, the film music and other large files to the mechanical hard disk is very important, must let the solid-state hard disk partition to retain enough space.