Ibm RS/6000 Manuel d'utilisateur Page 124

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 228
  • Table des matières
  • DEPANNAGE
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 123
The ISA/EISA bus has no standard method of identifying adapters or their
configuration requirements. Non-native ISA devices will have to be configured
manually and may even need to change some of the device's predefined or
customized attribute values, especially when configuring two or more ISA adapters
of the same type.
Plug and Play ISA adapters provide dynamic detection and modification of settings
on the card. They require the device drivers and the operating system to support
the Plug and Play architecture.
Note
AIX does support EISA I/O buses with ISA adapter cards and integrated
devices, but it does not support EISA adapter cards.
6.1.1 Device Configuration Database
Device information is contained in a predefined database or in a customized
database that makes up the Device Configuration Database managed by the Object
Data Manager (ODM).
The predefined database contains configuration data for all possible devices
configurable to the system.
The customized database contains configuration data for all currently defined
devices in the system.
The device information stored in the Device Configuration Database allows the
automatic configuration of microchannel devices on microchannel-based RS/6000
systems and PCI devices on PCI-based RS/6000 systems whenever the
Configuration Manager (cfgmgr) program is run at system boot and run time.
As for non-native ISA devices, the information data contained in the predefined part
of the configuration database is not sufficient to perform automatic, conflict-free ISA
device configuration. Thus, the user needs to manually customize some values to
be used by the ISA device (for example, interrupt level, shared memory address
and so forth) when configuring the device for the first time. We will explain this in
detail later in this chapter.
The Device Configuration Database that is currently used by the system is located
in the directory that is specified by the ODMDIR environment variable, normally the
/etc/objrepos directory.
In AIX Version 3.2, all device software was installed when the operating system
was installed. In AIX Version 4, only those software packages for devices that
were detected at the installation time are automatically installed.
Refer to the redbook
Managing AIX V.4 on PCI-Based RS/6000 Workstations,
SG24-2581-00
, or to the AIX Version 4.1 product documentation for more
information on device management and enhancements to the Device Configuration
Database.
100 Introduction to PCI-Based RS/6000 Servers
Vue de la page 123
1 2 ... 119 120 121 122 123 124 125 126 127 128 129 ... 227 228

Commentaires sur ces manuels

Pas de commentaire