• Home
• Brands
• HP Manuals
• HP 381513-B21 - Smart Array P800 Controller RAID
• Hewlett-Packard 381513-B21 - Smart Array P800 Controller RAID Configurations

Hewlett-Packard 381513-B21 - Smart Array P800 Controller RAID Configurations

Download Technology brief of HP 381513-B21 - Smart Array P800 Controller RAID Adapter, Carrying Case for Free or View it Online on All-Guides.com. This version of HP 381513-B21 - Smart Array P800 Controller RAID Manual compatible with such list of devices, as: 381513-B21 - Smart Array P800 Controller RAID, 60C - Optical Disk Jukebox, AA988A - Modular Smart Array Storage Controller SCSI, Clemco 60, DesignJet 70

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

phy

phy is a generic electronics term referring to an electronic integrated circuit or a functional block of a

circuit that encodes and decodes transmissions between a pure digital domain (on-off) and a

modulation in the analog domain. A ‘SAS phy’ is a combination of the physical layer, phy layer and

link layer functions. A minimum of two phys (one at the initiator, the other at the target) is required to

complete a SAS physical connection pathway, as shown in Figure A-1.

Figure A-1. phys are required to complete a SAS physical connection

device

device

Port

Port

port

port

Phy

Phy

phy

phy

SAS phy

link

layer

phy

layer

physical

layer

SAS phy

link

layer

phy

layer

physical

layer

SAS domain

A SAS domain consists of one or more SAS devices and expander devices and can be contained

within a SCSI domain

SCSI domain

A SCSI domain contains a service delivery subsystem and one or more SCSI devices. Additionally,

this domain contains a set of SCSI initiator ports and target ports that can communicate with each

other when interconnected by a service delivery subsystem.

SCSI initiator

The SCSI initiator is the host-side endpoint of a SCSI session. SCSI initiators request data transfers

from SCSI targets. An HBA is an example of a SCSI initiator.

SCSI initiator port

A SCSI initiator port acts as the connection between application clients and the service delivery

subsystem through which requests and responses are routed. In all cases when this term is used it

refers to an initiator port or a SCSI target/initiator port operating as a SCSI initiator port.

SCSI target port

A SCSI target port contains a task router. It acts as the connection between device servers and task

managers and the service delivery subsystem through which requests and responses are routed.

When this term is used it refers to a SCSI target port or a SCSI target/initiator port operating as a

SCSI target port.

10