HP Proliant DL580 - Manual (Page 12)

Availability HP Advanced Memory Protection Technology - delivers unsurpassed memory protection and
server availability with the following supported modes of operation:
Advanced ECC
Advanced ECC Memory is the default memory protection mode for the HP ProLiant DL580
G5. In Advanced ECC, the server is protected against correctable memory errors. The
server will provide notification if the level of correctable errors exceeds a predefined
threshold rate. The server does not fail because of correctable memory errors.
Advanced ECC provides additional protection over Standard ECC in that it is possible to
correct certain memory errors that would otherwise be uncorrectable and result in server
failure. Whereas Standard ECC can correct single-bit memory errors, Advanced ECC can
correct single-bit and multi-bit memory errors if all failed bits are on the same DRAM device
on the DIMM.
Online Spare Memory
Offers a higher level of memory protection than Advanced ECC alone. If the number of
single-bit correctable errors on a bank exceeds the pre-defined error threshold, that bank
will fail over to the online spare bank without intervention or server interruption. The failed
memory can then be replaced at the user's convenience during a scheduled maintenance
window.
Online Spare Memory is achieved by protecting active memory with online spare memory on
the same memory board. No operating system support is required.
Mirrored Memory
Mirrored Memory provides a higher level of availability than Advanced ECC and Online
Spare Memory. With Mirrored Memory, the server is protected against uncorrectable
memory errors that would otherwise result in server failure. Mirrored Memory allows the
server to keep two copies of all memory data. If an uncorrectable error is encountered, the
proper data is retrieved from the copy of memory that did not fail.
Smart Array P400i Controller with optional Battery Backed Write Cache (BBWC) Enabler
provides transportable data protection and increases overall controller performance. Up to
512MB Battery Backed Write Cache protection optional on HP ProLiant DL580 G5 (512MB
BBWC ships standard with 4P High Performance Models).
Hot Plug Redundant Fans - Six Hot Plug Redundant Fans ship standard with all models.
Front Accessible Chassis - Redesigned chassis allows access to memory, processors and
hard drives from the front of the server while it remains safely engaged in the rack. This
provides easier serviceability and lowers the chance of interfering with neighboring servers'
cables and components.
Hot Plug Universal Drives - Up to sixteen Hot Plug Universal SFF SAS drives are supported.
Hot Plug Redundant Power Supplies - Four Hot Plug Redundant Power Supplies ship
standard with all 4P High Performance Models (Hot Plug Redundant Power Supplies are
optional with 2P Base models).
QuickSpecs
HP ProLiant DL580 Generation 5
Standard Features
DA - 12770 Worldwide QuickSpecs — Version 18 — 7.18.2008 Page 12