D2861 (BX922 S2)
Technical Manual
23
Performance features
Main memory
Main memory operating modes
There are four modes of operation for the main memory:
–
Independent Channel Mode (maximum memory configuration)
The populated memory in the 6 channels (A-F) can be used in full (max.
192 GB).
–
Mirrored Channel Mode (maximum security)
Only the populated memory in the 2 channels A and D can be used (max.
64 GB). The 2 channels B and E are for failure protection purposes only.
They contain the mirrored data from channels A and D. Channels C and F
are not used.
–
Performance Channel Mode (maximum performance)
The populated memory in the 6 channels (A - F) can be used in full (max.
192 GB).
–
Spare Channel Mode (high memory configuration with high security)
I
This mode is only supported by Intel processors of type Intel
®
Xeon
®
processors of the 5600 series.
Only the populated memory in the 4 channels A, B, D and E can be used
(max. 128 GB). Channels C and F are for failure protection purposes only.
Depending on the mode of operation there are different population require-
ments (see
figure 3 on page 24
).
I
For system relevant information please refer to the configurator of the
server:
https://sp.ts.fujitsu.com/dmsp/docs/cnfgbx922s2.pdf
(for the EMEA market)
http://primeserver.fujitsu.com/primergy/system.html
(for the Japanese
market)
