Hot-Plug Pci-X; Hot-Plug Pci-X Operations; Operating System Support For Hot-Plug Pci-X Operations - HP Integrity rx4640 Operation And Maintenance Manual

Hot-Plug PCI-X

The hp Integrity rx4640 Server supports PCI-X hot-plug technology and offers 6 PCI-X, hot-plug capable slots.

Hot-Plug PCI-X Operations

PCI-X hot-plug technology enables the following hot-plug operations. For procedures with step-by-step instructions
describing how to add, replace, delete, and locate PCI-X cards see "Hot-Plug Operation Procedures" on page 58.
• Online Addition (OL-A)
You can install new PCI-X expansion cards in previously empty slots without powering down the server.
• Online Replacement (OL-R)
You can replace a previously occupied slot with a new PCI-X expansion card by suspending the driver. This operation
combines removing an active card and replacing it with an equivalent capability card. The existing driver for the old card
must be compatible with the new card.
CAUTION A special OL-R requirement for HP-UX 11i v2 is that the card to be inserted (replaced) must be exactly
the same as the removed card. This is also known as like-for-like replacement.
NOTE
Windows Server 2003 Enterprise Edition does not support OL-R. Instead, you can perform a combination
of an OL-D operation followed by an OL-A operation. This is the equivalent of an OL-R operation.
• Online Deletion (OL-D)
You can remove an existing PCI-X expansion card. This operation is different from OL-R because there are no restrictions
placed on the type of replacement card that you can use. In this operation, the drivers are also completely removed from
the slot.
NOTE HP-UX 11i v2 does not support OL-D. It does support OL-R.
• PCI-X Slot Locate (Locate)
To easily locate the PCI-X slot at which you wish to perform a hot-plug operation, you can command the attention LEDs,
on the OLX divider and the I/O baseboard, to blink and act as visual cues to the active slot location. This operation is
always initiated via a software or web interface, and is optional to the operating system on your HP Server.

Operating System Support for Hot-Plug PCI-X Operations

The capability of each operating system to support hot-plug PCI-X operations is different. The following explanation details
the capabilities of each operation system.
• HP-UX 11i v2
HP-UX 11i v2 supports only OL-A, OL-R, and Locate hot-plug PCI-X operations.
In OL-R, it is a requirement that the card to be inserted (replaced) be exactly the same as the card being removed. During
this OL-R operation, HP-UX 11i v2 suspends the device driver and re-enables it upon completion of the OL-R operation.
In HP-UX 11i v2, the Locate function is only available via the command line or web interface.
Chapter 4
Installing Additional Components and Configuring
Hot-Plug PCI-X
53