Exam 5V0-22.23 topic 1 question 27 discussion

Agreed, B,E https://www.yellow-bricks.com/2021/03/22/vsan-7-0-u2-durability-components/

B- Faster resynchronization E - Better availability

D. Better Storage utilization Durability components can enhance storage efficiency by allowing for advanced data protection techniques, which can lead to better use of available storage capacity. E. Better Availability Durability components increase data availability by ensuring that data is protected against failures, allowing for greater resilience in the face of component or host failures. These characteristics help ensure that data remains accessible and efficiently stored within the vSAN environment.

They provide better availability to vSAN. Durability components were introduced in vSAN 7.0 Update 1 and provided a mechanism to maintain the required availability for VMs while doing maintenance. That meaning that when you would place a host into maintenance mode new “durability components” would be created for the components which were stored on that host. This would then allow all the new VM I/O to be committed to the existing component, as well as the durability component. Starting with vSAN 7.0 Update 2, vSAN also uses these durability components in situations where a host failure has occurred 12. They improve resync times. Durability components are used to commit all new write IO to. This will allow vSAN to resync fast after maintenance mode, and enhances durability as we would still have 2 copies of the (new) data 3.

D. Better Storage utilization: Durability components help ensure data is distributed and stored efficiently within the vSAN cluster, leading to better storage utilization. E. Better Availability: Durability components contribute to the availability of data by providing redundancy and protection against failures. Options A, B, and C are not directly related to durability components: