User`s guide

1.5 Addressing Storage Within the Subsystem
This section provides an overview of how a controller subsystem addresses
storage. Storage is seen in two different ways, depending on your perspective and
your controller model:
1. From the controller SCSI–2 device interface—At the physical device level
2. From the host interface—At the virtual device level
The following sections describe both levels of storage addressing.
1.5.1 Controller Storage Addressing
Note
This section on controller storage addressing applies to all controller
models except where noted.
Figure 1–3 shows a typical physical storage device interface for an HSZ40
array controller. Each of the controller’s six device ports supports a SCSI–2 bus
connected with up to six devices. The devices typically reside in a StorageWorks
BA350–Sx SBB shelf.
1–8 Introduction to HS Array Controllers