Calculation of Service Life of SSD hard disk used by VSAN

SSD performance parameter classification:

Class A: 2500-5000 writes per second (removed from list)

Class B: 5000- 10,000 writes per second

Class C: 10,000 - 20,000 writes per second

Class D: 20,000 - 30,000 writes per second

Class E: 30,000 - 100,000 writes per second

Class F: Write more than 100,000 times per second

Flash Persistence (TBW) Definition Level (SSD Write Life in TB):

Class A:TBW≥365

Class B:TBW≥1825

Class C:TBW≥3650

Class D:TBW≥7300

The calculation is based on the following SSD parameters:

800 gigabytes in size and 14600TBW in durability, i.e. 14600*1000 gigabytes in total written data

If you plan to use this SSD hard disk for 5 years, the number of times this hard disk can be written per day is: 14600*1000/800/5/365=10 times, that is, this hard disk can be completely written 10 times per day, that is, 8000G.

The estimated capacity written per day can also be used to calculate the age of the SSD