Sun Microsystems Fire V890 Service Manual page 37

Caution – You can hot-plug any standard PCI card that complies with PCI Hot-Plug
Specification Revision 1.1, provided a suitable software driver exists for the Solaris
Operating System, and the driver supports hot-plugging as described in the Sun Fire
V890 Dynamic Reconfiguration User's Guide. The Sun Fire V890 system must be
running the Solaris 8 7/01 Operating System or a subsequent release that supports
Sun Fire V890 PCI hot-plug operations. Do not attempt to hot-plug a PCI card until
you are certain that its device drivers provide the proper support; otherwise, you
may cause a system panic. For a list of Sun PCI cards and device drivers that
support PCI hot-plug operations, refer to the Sun Fire V890 Server Product Notes.
Note – DR works in conjunction with (but does not require) multipathing software.
You can use multipathing software to switch I/O operations from one I/O controller
to another to prepare for DR operations. With a combination of DR and multipathing
software, you can remove, replace, or deactivate a PCI controller card with little or
no interruption to system operation. Note that this requires redundant hardware;
that is, the system must contain an alternate I/O controller that is connected to the
same devices as the card being removed or replaced. The alternate controller must
reside on a different PCI card or be integrated into the Sun Fire V890 system
motherboard or I/O board. For additional details, refer to the Sun Fire V890 Server
Owner's Guide.
Chapter 1 Preparing to Service the System 9