HP ProLiant BL660c HP Advanced Memory Error Detection Technology
HP ProLiant BL660c Manual
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- HP ProLiant BL660c | HP Advanced Memory Error Detection Technology - Page 1
and uncorrectable errors 4 Why memory errors are increasing...4 Server memory capacity is increasing 4 DRAM technology is changing...5 HP Advanced Memory Error Detection Technology 5 Enhancements...5 Advantages ...6 HP ProLiant servers supported ...6 Conclusion...6 For more information - HP ProLiant BL660c | HP Advanced Memory Error Detection Technology - Page 2
later), we have enhanced protection with HP Advanced Memory Error Detection Technology. This innovation seeks out specific defects that either cause performance degradation or significantly increase the probability of an uncorrectable (non-recoverable) memory condition. By improving the prediction - HP ProLiant BL660c | HP Advanced Memory Error Detection Technology - Page 3
of times per second. The operating voltage of the DIMM determines the level of the electrical charge. As shown in the read operation Figure 2, the memory controller sends the address signals-bank, row, and column-that specify the location of the target DRAM cell. In the designated bank, the row - HP ProLiant BL660c | HP Advanced Memory Error Detection Technology - Page 4
Opteron™-based Xeon systems support DDDC in lockstep memory mode. memory. This is causing manufacturers to expand the memory capacity of servers. In the last 5 years, the average memory capacity per server has grown by more than 500%-from 5.6 GB to 33 GB per server across all HP ProLiant server - HP ProLiant BL660c | HP Advanced Memory Error Detection Technology - Page 5
the demands of HPC and virtualization. For example, an HP ProLiant DL580 G7 server fully populated with 32 GB DIMMs contains 2 TB of system memory, which translates to 18 trillion memory cells. DRAM technology is changing Memory manufacturers increase DIMM storage capacity by decreasing DRAM feature - HP ProLiant BL660c | HP Advanced Memory Error Detection Technology - Page 6
memory error. HP ProLiant servers supported HP Advanced Memory Error Detection Technology is introduced in the System ROM upgrade (May 2011 or later) for certain Intel Xeon-based ProLiant G6 and G7 platforms and for certain AMD Opteron-based ProLiant G7 platforms. For a list of specific servers - HP ProLiant BL660c | HP Advanced Memory Error Detection Technology - Page 7
(version May 2011 or later), we have enhanced memory error protection with HP Advanced Memory Error Detection Technology. This innovation monitors several memory parameters and seeks out specific defects that either cause performance degradation or significantly increase the probability of a non - HP ProLiant BL660c | HP Advanced Memory Error Detection Technology - Page 8
Via the May 2011 (or Later) System ROM Upgrade for Certain HP ProLiant G6 and G7 Servers Memory technology evolution: an overview of system memory technologies DDR3 memory technology Web address http://h20000.www2.hp.com/bizsupport/TechSupport/Docu ment.jsp?locale=en_US&objectID=c02914487 http
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HP Advanced Memory Error Detection
Technology
Technology brief
Introduction
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2
SDRAM technology
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2
Memory errors
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3
Traditional memory error classifications
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4
Correctable and uncorrectable errors
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4
Why memory errors are increasing
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4
Server memory capacity is increasing
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4
DRAM technology is changing
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5
HP Advanced Memory Error Detection Technology
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5
Enhancements
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5
Advantages
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6
HP ProLiant servers supported
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6
Conclusion
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6
For more information
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