Users Guide

• R930
• R830
• R730xd
• R730
• R630
• T630
• M830
• M630
• FC830
• FC630
• The BIOS version on your system must be 1.2.1 or later for 13th generation of Dell PowerEdge servers that supports VMware ESXi
6.5.x.
• The memory modules must be populated on the memory channels to support Mirror Mode. For more information, see your system
Owner’s Manual at www.dell.com/poweredgemanuals.
• You need vSphere Enterprise or Enterprise Plus licensing to enable the VMware Reliable Memory technology.
To enable FRM on your system, complete the following procedure:
1. Turn on your system.
The Dell EMC logo is displayed.
2. Press F2 to open the System Setup menu.
After the system boot is completed, the System BIOS configuration menu is displayed.
3. Using the up- and down-arrow keys, select the System Setup options, and then select Memory Settings.
4. Select NUMA Fault Resilient Mode as Memory Operating Mode.
CAUTION:
Dell EMC recommends that you do not modify other settings unless you are familiar with the settings.
Modifying settings could cause your system to fail to boot or function properly.
5. Press Enter and follow the on-screen procedure to save these changes.
6. Restart your system.
NOTE: No further configuration changes are required for ESXi to use the reliable memory region.
Overview of Dell Fault Resilient Memory
CAUTION:
Do not attempt to enable Fault Resilient Memory (FRM) on vSphere versions earlier than VMware ESXi 5.5.
Up to 25 percent of system memory may be consumed to provide the FRM zone in 12th generation of the PowerEdge
servers and 12.5 percent of system memory may be consumed to provide FRM zone in 13th Generation of the Dell
PowerEdge servers.
FRM is a Memory Operating mode available on the BIOS settings of high-end 12
th
generation Dell PowerEdge servers and later. This mode
establishes an area of memory that is fault resilient and protects the hypervisor against uncorrectable memory errors, and safeguards the
system from becoming unresponsive. Systems with ESXi that supports the FRM feature can load the operating system kernel to maximize
system availability and or critical applications or services. VMware ESXi version 5.5 update 2 and later supports FRM through its Reliable
Memory (ReM) technology.
Enabling Dell Fault Resilient Memory
The following conditions must be fulfilled before you enable base FRM:
• ESXi 6.5.x must be deployed on one of the following PowerEdge servers:
Table 1. PowerEdge Servers
14
th
generation PowerEdge Servers 13
th
generation PowerEdge Servers
R940xa R930
R940 R830
R840 R730xd
R740xd R730
10 Installing vSphere 6.5.x