Bull NovaScale R460 E1, Руководство пользователя, Страница: 166 / 370

User Guide
165
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DIMMs installed in a specific memory branch should have the same capacity. The
server operates properly as long as DIMMs of the same capacity are installed in
each memory branch. (For example, the server can operate if the total capacity of
memory branch 0 is different from that of memory branch 1.)
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Run SETUP, change the parameters appropriately in the [Sparing] menu selected
as shown below, save the settings and exit from SETUP.
[Advanced], [Memory Configuration], [Sparing]
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Install memory devices in the following order:
Group 1, Group 3, Group 5 for memory branch 0
Group 2, Group 4, Group 6 for memory branch 1
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The spare memory group must be the group with the largest number within a
memory branch.
The following sparing can be neither configured nor set.
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Sparing to another memory branch.
The table below lists examples of DIMM installation patterns enabling the online spare
memory feature to be used. While the following patterns are provided for memory
branch 0, the same patterns can also be adapted to memory branch 1.
Depending on the specification of the memory controller, the spare memory is set in
units of rank memory.
The logical memory capacity of single rank memory differs from that of dual rank
memory when online spare memory is specified.
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Single rank memory configuration
Logical memory capacity = (Physical memory capacity * Number of DIMMs) –
(Physical memory capacity)
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Dual rank memory configuration
Logical memory capacity = (Physical memory capacity * Number of DIMMs) –
(Physical memory capacity / 2)
Example Memory Branch #0
(Group #)
Capacity
#1 #3 #5 Physical Logical
1 1GB 1GB - 2GB 1GB
2 1GB 1GB 1GB 3GB 2GB
3 2GB 2GB - 4GB 3GB
4 2GB 2GB 2GB 6GB 5GB
5 4GB 4GB - 8GB 6GB
6 4GB 4GB 4GB 12GB 10GB
7 8GB 8GB - 16GB 12GB
8 8GB 8GB 8GB 24GB 20GB