HP ML150 HP ProLiant Intel-based 100-series G6 server technology - Page 18

MHz. This will save power, but may incur some performance penalty. Administrators can configure the maximum memory data rate through the BSU. Managing I/O technologies Disable PCIe 2.0 All ProLiant G6 servers include an option that allows all expansion slots to run at PCIe 1.0 speed rather than PCIe 2.0 speed. Enabling this option saves power and provides backward compatibility with cards that may not correctly operate in PCIe 2.0 slots. Administrators can control expansion slot speed through the BSU. Power Efficiency Mode In ProLiant 100-series G6 servers, the BSU can enable three different settings for the Power Efficiency Mode: Efficiency, Performance, and Custom. As implied, the Efficiency setting provides the greatest efficiency, while the Performance setting provides the highest performance. The Custom setting is simply any combination of user settings that do not match the pre-sets for Efficiency and Performance. The Power Efficiency Mode directly effects the operation of select power features identified earlier in this section. Power Performance Benchmarks The Standard Performance Evaluation Corporation (SPEC) is a non-profit corporation formed to establish, maintain and endorse a standardized set of relevant benchmarks that can be applied to the newest generation of high-performance computers. SPECpower_ssj2008 is the first industry-standard SPEC benchmark that evaluates the power and performance characteristics of volume server class computers. As of this writing, SPECpower benchmark results are available for the ProLiant DL170h and the ProLiant DL380 G6 servers (www.spec.org/power_ssj2008/results/power_ssj2008.html). The test results show performance gains achieved over the last generation of ProLiant servers. NOTE: These power performance benchmarks do not include servers using the Xeon 3400 series processor. Security The Trusted Platform Module™ (TPM) and Microsoft® BitLocker® technology are supported in all ProLiant 100-series G6 servers by means of the Trusted Platform Module option kit. Trusted Platform Module The Trusted Platform Module v1.2 supported on ProLiant G6 servers is a microcontroller chip that can create, securely store, and manage artifacts such as passwords, certificates, and encryption keys that are used to authenticate the server platform. The TPM 1.2 chip provides a unique Endorsement Key (EK) and a unique Storage Root Key (SRK). It provides data encryption and uses RSA, SHA-1, RNG cryptographic functions to provide access protection, OS level protection, and stolen disk protection. The TPM 1.2 chip can also store platform measurements (hashes) to help ensure that the platform remains trustworthy. TPM enables Microsoft BitLocker, part of Windows® Server 2008. 18