GB/T 36355-2018Information technology—Test method of solid state disk (English PDF)

2.1 Terms and Definitions

The following terms and definitions apply to this document.

2.1.1 Solid state disk

A storage device that reads and writes data using an electronic memory or a memory module as a main recording medium.

Note: The SSD of the SSD is often abbreviated as the SolidStateDrive internationally. SolidStateDrive and the SSD referred to in this standard To. Solid-state disks, also commonly referred to as electronic memory disks, are data storage devices that use flash memory as a storage unit, unlike traditional mechanical hard disks, and solid-state disks. There is no mechanical part and it is mainly composed of a controller and a storage unit. The SSD referred to in this standard is different from the mobile flash disk (using USB as the main interface The flash storage devices) usually use traditional mechanical hard disk interfaces such as SATA and SAS.

2.1.2 Nominal capacity

The stated capacity stated on the relevant description of the tested SSD.

Note: Use PB, TB, GB, MB, KB or PiB, TiB, GiB, MiB, KiB, where.

a) 1KB = 1000 (10^3) bytes;

b) 1MB = 1000000 (10^6) bytes;

c) 1GB = 1000000000 (10^9) bytes;

d) 1TB = 1000000000000 (10^12) bytes;

e) 1PB=1000000000000000 (10^15) bytes;

f) 1KiB=1024 (2^10) bytes;

g) 1 MiB = 1048576 (2^20) bytes;

h) 1GiB=1073741824 (2^30) bytes;

i) 1TiB=1099511627776 (2^40) bytes;

j) 1PiB=1125899906842624 (2^50) bytes.

2.1.3 Available capacity

Actually accessible storage capacity. The unit conversion is calculated in binary.

Note: The common conversion methods for different occasions are.

a) Commonly used binary conversion in operating system, the conversion relationship is 1TiB=1024GiB, 1GiB=1024MiB, 1MiB=1024KiB;

b) SSD manufacturer commercial decimal conversion, the conversion relationship is 1TB = 1000GB, 1GB = 1000MB, 1MB = 1000KB. Thus, in The display capacity seen in the firmware/BIOS, when formatting the hard disk, or in the file management system is smaller than the nominal capacity of the manufacturer.

2.1.4 Read and write rate

The number of reads and/or writes in unit time.

Note: Usually also called the number of input and output per second, that is, IOPS.