questions on DDB recync and convertddbTov5

Good day,

CS: V11.16.x

Before doing a hardware refresh for the CS, we created a VM in a lab with wins2019 and imported the CS DB during SP28 installation. 

all works fine. However, once login to the CommCell Console, we received a message indicating that the DDB was currently undergoing maintenance and required the completion of maintenance operations such as DDB resynchronization and conversion to a transactional DDB, among others.

we have 2 DDBs, and the "convertddbTov5" plan indicates that there are 2 Memdb that need to be converted to version 5. 

Questions: 

1. if the DDB resynchronization will function as expected after the CS hardware refresh, as two of the DDBs are MemDBs that will need to be converted to V5 after the successful hardware refresh and DDB resynchronization.
2. Which logs will display the DDB resynchronization status and process, does "sidbengine.log"?
3. if the DDB resynchronization or the "convertddbTov5" operation will impose any restrictions on the ability to browse or restore data.
   
   thanks