Seagate ST4000DM000 Product Manual page 10

Introduction www.seagate.com
The host adapter may, optionally, emulate a master/slave environment to host software where two devices on
separate SATA ports are represented to host software as a Device 0 (master) and Device 1 (slave) accessed at
Note
the same set of host bus addresses. A host adapter that emulates a master/slave environment manages two
sets of shadow registers. This is not a typical SATA environment.
10 Desktop HDD SATA Product Manual, Rev. C