IBM NeXtScale System, Планирование и руководство по внедрению

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IBM NeXtScale System Planning and Implementation Guide
򐂰 Memory Speed (Default: Max Performance)
This option sets the following operating frequency of the installed DIMMs:
– Minimal Power provides less performance for better power savings. The
memory operates at the lowest supported frequency.
– Power Efficiency provides the best performance per watt ratio. The
memory operates one step under the rated frequency.
– Max Performance provides the best system performance. The memory
operates at the rated frequency.
򐂰
Memory Power Management (Default: Disabled)
This option sets the memory power management. Disable provides maximum
performance at the expense of power.
򐂰
Socket Interleave (Default: NUMA)
This option sets NUMA or Non-NUMA system behavior. When NUMA is
selected, memory is not interleaved across processors whereas Non-NUMA
memory is interleaved accross processors.
򐂰
Memory Data Scrambling (Default: Enabled)
This option enables a memory data scrambling feature to further minimize
bit-data errors.
򐂰
Page Policy (Default: Adaptive)
This option determines the following Page Manager Policy in evaluating
memory access:
– Closed: Memory pages are closed immediately after each transaction.
– Open: Memory pages are left open for a finite time after each transaction
for possible recurring access.
– Adaptive: Use Adaptive Page Policy to decide the memory page state.
7.1.3 ASU
By using the IBM ASU tool, users can modify firmware settings from the
command line on multiple operating-system platforms.
You can perform the following tasks by using the utility:
򐂰 Modify selected basic input/output system (BIOS) CMOS settings without
restarting the system to access F1 settings.
򐂰
Modify selected baseboard management controller setup settings.
򐂰 Modify selected Remote Supervisor Adapter and Remote Supervisor Adapter
II setup settings.