HP ProLiant DL580 Setup And Installation Manual page 127

Online spare memory can be configured with either one or two memory boards.
Bank B on the memory board in slot 1 is the online spare bank, even if two memory
boards are installed. The online spare bank can provide memory protection for up to
three other banks: one bank on the memory board in slot 1 and two banks on the
memory board in slot 2. If any DIMM in these three banks exceeds the HP defined
limit for single-bit correctable errors, indicating that it may fail, the system performs
the following actions:
•
Copies the contents of the degraded bank to the online spare bank
•
Deactivates the failing bank
•
Activates the online spare bank
•
Provides notification of the DIMM failure using the memory board LEDs, the
front-panel internal health LED, Insight Manager 7, and the QuickFind
Diagnostic Display.
This process occurs without intervention or server interruption, and enables you to
replace the degraded DIMM at your convenience during a regularly scheduled
shutdown.
DIMM Installation Requirements
In addition to the DIMM configuration requirements for advanced ECC memory,
observe the following DIMM configuration requirements when installing DIMMs for
online spare memory:
•
Memory board slot 1 must be populated.
•
Bank B on the memory board in slot 1 is the online spare bank, even if two
memory boards are installed, and must be populated when the server is
configured for online spare memory.
•
DIMMs installed in the online spare bank must be of equal or greater capacity
than each of those in the remaining banks on both memory boards.
IMPORTANT: If memory board slot 1 is not populated, the system automatically switches to
advanced ECC memory and displays an error message during POST.
HP ProLiant DL580 Generation 2 Server Setup and Installation Guide
Memory
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