Sun Microsystems Fire X4540, Administration Manual

Page: 36 / 154

22 Sun Fire X4500/ X4540 Servers Administration Guide • October 2008
Component Configuration Information
This section describes component configuration and state information for the Sun
Fire X4500 Server.
This section includes:
■
“Attachment Points Overview” on page 22
■
“Determining Attachment Points” on page 23
■
“Changing to Attachment Points” on page 23
■
“States and Conditions” on page 24
■
“Drive and Drive Slot States” on page 24
■
“Drive Conditions” on page 25
■
“Component States” on page 25
Attachment Points Overview
The
cfgadm
command displays information about attachment points.
An attachment point is a collective term for a component or device, the slot that holds
it, and any components on it. Slots are sometimes called receptacles .
An attachment point consists of the following:
■
An occupant, which represents a hardware component that can be configured into
the system. The term
occupant refers to the combination of a component and its
attached devices, including any external storage devices connected by interface
cables.
■
A receptacle, which is the location that accepts the occupant.
There are two types of attachment point names:
■
Physical attachment point – The software driver and the location of the slot.
■
Logical attachment point – An abbreviated name created by the system to see the
physical attachment point.
An attachment point defines two unique elements, which are distinct from the
hardware resources that exist beyond the attachment point. The two elements of an
attachment point are a receptacle and an occupant. Physical insertion or removal of
hardware resources occurs at attachment points and results in a receptacle gaining
or losing an occupant. Configuration administration supports the physical insertion
and removal operations as well as other configuration For more information about
Ap_Ids
, refer to
cfgadm
(1M).