All the OS and applications of the NAS are embedded on the disk on module (DOM). QNAP’s Intel-based NAS models allow system booting without accessing the physical disk sectors and that prevents unsuccessful system startup caused by bad block sectors or file errors on the hard drives. Two operating systems are built on the DOM for system booting alternatively upon every system startup. When one fails, the other one will be used to boot up instead, and the failed OS is recoverable from the other healthy OS.
- High system reliability
- Prevent unsuccessful system startup due to bad block sectors or file errors on the hard drives