Certification Introduction

MTBF certification refers to the certification of the mean time between failures of the product, and the full English name is "Mean Time Between Failure". In fact, MTBF refers to the MTBF test report, which is a report on product reliability prediction. MTBF is a reliability index to measure a product (especially electrical products). The unit is "hours". It reflects the time quality of the product and reflects the ability of the product to maintain its function within the specified time. Specifically, it refers to the average working time between two adjacent failures, also known as the mean interval between failures. In a nutshell, the product with fewer failures is more reliable, and the ratio of the total number of product failures to the total number of life units is called the "failure rate". It only applies to serviceable products. At the same time, it is also stipulated that the ratio of the cumulative working time to the number of failures in the total use phase of the product is MTBF. Generally, the MTBF of disk array products cannot be lower than 50,000 hours.

The reference standards that MTBF usually correspond to are:

• Telcordia SR 232

• US military standard MIL-HDBK-217

• National Military Standard GJB/Z 299B