
Determine Required VMware ESX(i) Server Hardware Section 3 Planning
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is possible to combine these nodes as separate VMs on the same physical VMware
ESX(i) server because they still run as separate nodes (separate VMs). Combined
server node types with heavy resource usage should be split into separate VMs to
prevent resource starvation. Refer to the System 800xA System Guide Technical
Data and Configuration (3BSE041434*) instruction for more information.
Determine Required VMware ESX(i) Server Hardware
Refer to ABB certified hardware listings for supported hardware.
Determine the total hardware size of one VMware ESX(i) server by summing up the
required performance and capacity numbers of each 800xA server node that run as
VMs on the VMware ESX(i) server. Additionally, extra hardware capacity for the
VMware ESX(i) server itself must be provided resulting in the following hardware
size calculation rules:
• Total RAM: Sum up the RAM required for all virtual 800xA server nodes
running on the VMware ESX(i) server. Also, add one additional gigabyte for
the VMware ESX(i) server itself.
Note that when a server has 2 CPUs, there is normally two areas for memory.
One for each of the CPUs. Each of these areas should be populated with the
same amount of memory. For example, if it was decided to have 20GB of
memory, this would be 5 x 4GB modules. There would be 2 modules for one
CPU and 3 modules for the other. The correct configuration would be to have
24GB of memory, in two sets of 3 modules.
Where there is a requirement for using non ABB listed server hardware, the
following issues must be fully understood:
• Technical support from ABB will be limited.
• The hardware chipset must still be Intel based.
• The hardware must be in VMware's approved compatibility listings.
• There will be no support for monitoring the ESX(i) server using
800xA PNSM. This must be handled by an alternative method.
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