402 IBM eX5 Implementation GuideUse these general settings for each operating system type: Pooled: Use this setting with Linux operating systems. Non-Pooled: VMware and Microsoft operating systems must be configured to use theNon-Pooled setting.8.5.6 Operating system-specific settings in UEFIWhen installing an operating system onto an HX5, there is little that you are required toconfigure in the UEFI. When using MAX5, ensure that you follow the MAX5 memory scalingsettings that are described in 8.7, “Operating system installation” on page 407.8.6 Creating an HX5 scalable complexThe HX5 provides the flexibility to scale from a single-node 2-socket system to a dual-node4-socket system, and back again when the business demand requires it. You can achieve allof this scaling without having to make any physical changes to the hardware after thescalability kit has been installed. The configuration of a multinode HX5 is controlled throughthe AMM web interface. The AMM communicates with the onboard integrated managementmodule (IMM) to enable and disable the scaling capabilities of the system, allowing for greatflexibility.In this section, we demonstrate how to scale two single-node HX5s into a dual-node complex.Use the following steps to create a complex:1. Log in to the AMM.2. Navigate to Scalable Complex Configuration. The scalable systems and the slotsthat they occupy are shown as tabs, as shown in Figure 8-36 on page 403. For ourexample, we use the HX5s installed in blade bays 1 and 2 to create a partition.Firmware requirements: Before you attempt to scale the HX5, see Table 8-3 on page 380for the minimum firmware requirements for the HX5 and the AMM.
