For use by HPFS, the new OS/2 2.0 disk-device driver interface
supports reading and writing information to disk drives that have the
SCSI bus architecture and the descriptors employed by SCSI protocols.
Read and write operations allow data transfer to and from
discontinuous memory buffers. SCSI support provides the following
advantages:
- Common bus for many types of peripherals, such as Compact
Disk-Read Only Memory (CD-ROM) drives, hard drives, read/write
optical drives, Write-Once-Read-Many (WORM) drives, and tapes,
without the necessity for separate controllers
- Up to seven external devices connected to one port
- Second internal hard drive to expand high-volume read-write disk
storage
- High-speed performance
- Automatic error correction