Chapter 2. Architecture and technical overview
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On Figure 2-15 on page 55 there is an example of the minimum required activations for a
system with 1 TB of installed memory.
Figure 2-15 Example of the minimum required activations for a system with 1 TB of installed memory
The granularity for static memory activation is 1 GB, while for mobile memory activation the
granularity is 100 GB. On Table 2-9 there is a list of the feature codes that can be used to
achieve the desired number of activations:
Table 2-9 Static and mobile memory activation feature codes
Static memory activations can be converted to mobile memory activations after system
installation. In order to enable mobile memory activations, the systems must be part of a
power enterprise pool and have feature code #EB35 configured. For more information on
power enterprise pools, please see 2.4.2, “Power enterprise pools and mobile capacity on
demand (Mobile CUoD)” on page 62.
2.3.4 Memory throughput
The peak memory and I/O bandwidths per system node have increased over 300% compared
to previous POWER7 servers, providing the next generation of data intensive applications
with a platform capable of handling the needed amount of data.
Power E870
Table 2-10 shows the maximum bandwidth estimates for a single core on the Power E870
system.
Feature code
Feature description
Amount of memory
Type of activation
EMA5
1 GB Memory activation
1 GB
Static
EMA6
100 GB Memory activation
100 GB
Static
EMA9
100 GB Mobile memory activation
100 GB
Mobile
1024 GB
512 GB
768 GB
256 GB
Installed memory
Minimum active
Minimum Static active
Maximum Mobile active
50% of total memory
75% of installed memory
25% of installed memory
Without Power Enterprise Pools
With Power Enterprise Pools
