The update of the HBA firmware to version 2.12 seems to solve” the missing drives after restart” (genuine Restarts and Crashes) issue.
However the BSOD are still there:
STOP 0x...D1, 0x,...34C
This happens if Adaptec Agent (Service) is enabled.
On our system this error is reproducible.
I did at least 3 installations!
Adaptec, is using the S500PSL board, unable to reproduce this error.
This time the crash damaged the boot sector (?): chckdsk C: "second NTFS boot sector unwritable" and Windows Backup fails every time.