Acer AcceleRAID 352 用户手册

Manual No. 775051

D-1

PCI Hot Plug is a feature that allows a PCI card to be replaced while the host 
system is still running. The term “Hot Plug” is somewhat misleading; the 
PCI card cannot simply be pulled out of the host system while the card is 
operating without risk to the card, the system, and the data on the system. 

In order to replace a Hot Plug PCI card, a software command must be 
invoked to power off the card slot before the card can be removed. After the 
software indicates that the card is unloaded and the slot is powered off, a 
physical card retainer/switch must be released to allow the card to be 
removed from the PCI bus. At this point, the card can be replaced. 

At this time, Mylex only supports Hot Replacement of PCI Hot Plug cards. 
Future releases are planned to support Hot Upgrade or Hot Expansion 
(adding a card).

Aside from the general terms previously mentioned, PCI Hot Plug 
implementation is specific to the host hardware platform and the operating 
system running on it. Refer to your host system's documentation for specific 
details on how to implement PCI Hot Plug.

When NetWare is installed on a system capable of PCI Hot Plug, the 
following four modules are installed:

• cpqsbd.nlm - This is the Compaq system bus driver (a different driver 

will be needed for a platform other than Compaq).

• ncm.nlm - This is the Novell Configuration Manager, which manages 

the PCI Hot Plug system.

• ncmcon.nlm - This is the Hot Plug user interface called the Novell 

Configuration Manager Console.