HP ML530 ProLiant ML530 Generation 2 Memory Installation Guide - Page 22

Memory Advanced Memory Protection Options The ProLiant ML530 Generation 2 server supports two types of optional Advanced Memory Protection: • Online spare memory • Single-board mirrored memory Each type includes Advanced ECC protection. Online Spare Memory Technology This section details the features and DIMM installation requirements for online spare memory. Features Online spare memory uses an online spare bank to provide additional memory protection. Online spare memory has the following advantages: • Online spare memory provides DIMM failover capabilities for single-bit correctable errors. Bank D is configured as an online spare bank. If a DIMM exceeds the HP predefined limit for single-bit correctable errors, indicating that it may fail, the system fails over to the online spare bank. • The server can support up to 12 GB of system memory and 4 GB of online spare memory using 2-GB DIMMs. IMPORTANT: DIMMs in the online spare bank must be of equal or greater capacity than the DIMMs in the remaining banks. Bank D is the online spare bank. The online spare bank can provide memory protection for up to three other banks. If any DIMM in these three banks exceeds the HP predefined limit for single-bit correctable errors, indicating that it may fail, the system performs the following actions: 1. Copies the contents of the degraded bank to the online spare bank 2. Deactivates the failing bank 1-12 HP ProLiant ML530 Generation 2 Server Memory Installation Guide