OEM MANUAL:K6602771
2 PRODUCT SPECIFICATION OUTLINE
Revision: 2 / Date: 2002.12.19
Page: 21 / 313
2
PRODUCT SPECIFICATION OUTLINE
This chapter describes the logical subjects of Product Specification.
Refer to the Product Specification for physical information which are not included
herein.
2.1
ADDRESSING
The host computer addresses the target logical unit (controller and drive) using the
methods described below.
(1) AL_PA
The device connected to FC-AL acquires address information (AL_PA) through loop
initialization processing.
AL_PA is uniquely assigned to every which is connected on the same loop device (an
initiator or target).
(2) Logical unit number
The host computer can address a logical unit in one of the following ways :
·
Specifying the logical unit in the logical unit number field of the FCP_CMND
Payload.
Note : The controller supports only the logical unit number 0.
2.2
DISK FORMAT
2.2.1 CYLINDER ALLOCATION
All cylinders on disks are assigned for the system area and the user area. The
system area is preserved for the controller’s use and may not be accessible from
the host computer.
The system area is allocated on both outermost cylinders, and it contains the
following types of data ;