HP ProLiant DL580 Generation 2 Server and HP ProLiant ML570 Generation 2 Server Hot-Add Memory

Description
Hot-Add Functionality
Hot-Add functionality is made possible by a combination of a Hot-Add aware OS
(currently Windows Server 2003 Enterprise Edition), system BIOS, and the Hot-Add
memory driver (the Advanced System Management Controller Driver provides this
function on these platforms). In addition, the hardware platform needs to support
hot-pluggable memory modules or cards.
Hot-Add functionality allows a system in Advanced ECC mode, with a single
memory board (meaning one memory board slot is empty), to dynamically have its
memory resources increased by insertion of another memory board (with identical
DIMM configuration as the existing board) while operating.
Hot-Add versus Hot-Mirror
Upon a board insertion, an option setting tracks whether the System ROM should
treat the board insertion as a Hot-Mirror (providing mirroring functionality) or
Hot-Add (providing additional memory available to the OS and applications).
While the Advanced Memory Protection Mode does have dependencies on the
Hot-Add versus Hot-Mirror configuration mode, no strict dependencies exist between
the two, and they operate independently.
Select the board insertion mode through ROM-Based Setup Utility (RBSU) or the
Hot-Plug Memory Configuration Utility. The default board insertion mode is Hot-
Mirror.
Hot-Add functionality takes advantage of the hardware responsible for allowing a
board to be inserted during runtime that is used for Dual-Board Memory Mirroring
mode and Hot-Mirroring.
With a Hot-Add board insertion, the OS is provided with additional memory
resources while operating without the need to reboot the server. Unlike Hot-Add
board insertion, Hot-Mirror dynamically places the system in a mirroring state but the
OS does not have access to additional memory. The primary function of the new
memory is to provide mirroring support and protection against multi-bit memory
errors.
HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory 7
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