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If this error occurs, follow these steps to change the boot code:

1. In the Loading VMware Hypervisor panel, press Shift+O when the progress bar is

displayed, as shown in Figure 6-78.

Figure 6-78 Loading WMware Hypervisor panel

2. Enter the following command at the prompt after you have pressed Shift+O:

esxcfg-advcfg -k TRUE allowInterleavedNUMAnodes

Your output looks like Figure 6-63 on page 281.

Figure 6-79 Loading WMware Hypervisor boot command

3. Press Enter after the command has been entered. Press Enter again to continue to boot.

4. Do not forget to select VMkernel.Boot.allowInterleavedNUMAnodes as active with the

vSpere Client.

6.10.4 OS installation tips and instructions on the web

In this section, we provide information about the OS installation guides on the IBM website

and describe certain (but not all) issues you might encounter.

Chapter 6. IBM System x3850 X5 and x3950 X5 289

Microsoft Windows Server 2008

This section provides useful information to assist with the installation of Windows Server

2008. The installation process has not been covered in this IBM Redbooks publication,

because there are no particular deviations from a standard Windows Server installation. You

can obtain a complete list of supported Windows Server OSs for x3850 X5 at this website:

http://ibm.com/systems/info/x86servers/serverproven/compat/us/nos/microsoft.html

Consider these useful tips:

򐂰 The following drivers are not included on the Windows Server 2008 DVD and must be

downloaded separately (or use ServerGuide instead):

– ServeRAID M5000 series RAID driver

– Intel chip set driver

– Broadcom NIC driver

– Dual-port Emulex 10GbE NIC driver

򐂰 If installing Windows 2008 Enterprise Edition on an 8-socket system, Hyper-Threading

must be turned off prior to installation or the system will stop with a blue window.

򐂰 The default installation installs the OS in UEFI mode. UEFI mode requires a separate

imaging methodology, because UEFI mode requires the OS to reside on a GUID Partition

Table (GPT) disk.

򐂰 The system can re-enumerate the boot drive when fibre devices are connected. This

situation will cause the OS to not boot properly. Use Windows Boot Manager from the

UEFI Boot Manager to fix this problem.

򐂰 You must set the MAX5 memory configuration in UEFI to Non-pooled mode.

򐂰 The recommendation is to review all RETAIN tips that are related to this system and the

OS that you are installing. See the following website:

http://ibm.com/support/entry/portal/Problem_resolution/Hardware/Systems/System_

x/System_x3850_X5

򐂰 For further tuning information, see the Performance Tuning Guidelines for Windows Server

2008 at the following page:

http://www.microsoft.com/whdc/system/sysperf/Perf_tun_srv.mspx

Microsoft Windows Server 2008 R2

This section provides useful information to assist with the installation of Windows 2008 R2.

The installation process has not been covered in this IBM Redbooks publication, because

there are no particular deviations from a standard Windows Server installation. You can

obtain a complete list of supported Windows Server OSs for x3850 X5 at the following

website:

http://ibm.com/systems/info/x86servers/serverproven/compat/us/nos/microsoft.html

The following web pages are the IBM installation guides for Windows Server 2008 R2:

򐂰 Installing Microsoft Windows Server 2008 R2 - IBM System x3850 X5 (7145, 7146), x3950

X5:

http://ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5083420

򐂰 Installing Microsoft Windows Server 2008 R2 - IBM System x3850 X5 (7145, 7146) with

MAX5:

http://ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5085823