CONFIGURATION GUIDE
–
NEC Express5800/R120f-2E
NEC Corporation
Revision 6.0
– July 16, 2015
15
Maximum Available Memory
See the table below for the maximum memory size that you can actually use on your system.
The maximum available memory is less than the maximum physical memory supported by your system
because some chipsets require PCI resource space of about 750MB. PCI resource requirements vary
depending on the type and the number of PCI cards you are using.
Maximum Memory Size Supported by OS
Maximum Available Memory
Microsoft Windows Server 2008 Standard (x86)
1
4 GB
4 GB (HW-DEP enabled)
App. 2 GB (HW-DEP disabled)
Microsoft Windows Server 2008 R2 Standard
1
32 GB
32 GB
Microsoft Windows Server 2008 Enterprise (x86)
1
64 GB
64 GB
Microsoft Windows Server 2008 R2 Enterprise
1
2 TB
512 GB
Microsoft Windows Server 2012 Standard
1
Microsoft Windows Server 2012 Datacenter
1
Microsoft Windows Server 2012 R2 Standard
1
Microsoft Windows Server 2012 R2 Datacenter
1
4 TB
512 GB
Red Hat Enterprise Linux 6
3 TB
16 GB
Red Hat Enterprise Linux 6 (x86_64)
Red Hat Enterprise Linux 7
6 TB
512 GB
VMware ESXi 5.1
2
2 TB
512 GB
VMware ESXi 5.5
2
4 TB
512 GB
VMware ESXi 6.0
3
6 TB
512 GB
1
The maximum available memory size of Hyper-V systems are below:
-
Windows Server 2008 Standard (x64) and Windows Server 2008 R2 Standard : 32 GB
-
Windows Server 2008 Enterprise (x64) and Windows Server 2008 R2 Enterprise : 1TB
-
Windows Server 2012, Windows Server 2012 R2 : 4 TB
2
Up to 1 TB of the main memory is available to each virtual machine.
3
Up to 4TB of main memory is available to each virtual machine.
