HP ProLiant SE2170s HP Advanced Memory Error Detection Technology
HP ProLiant SE2170s Manual
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- HP ProLiant SE2170s | HP Advanced Memory Error Detection Technology - Page 1
4 Correctable 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 - HP ProLiant SE2170s | HP Advanced Memory Error Detection Technology - Page 2
lets the administrator schedule server maintenance to replace a DIMM that may fail, avoiding unexpected interruption of business operations. In the ProLiant System ROM upgrade (version May 2011 or later), we have enhanced protection with HP Advanced Memory Error Detection Technology. This innovation - HP ProLiant SE2170s | HP Advanced Memory Error Detection Technology - Page 3
the output data pins to the memory bus. Figure 2: Representation of DIMM, chip, bank, cell hierarchy per rank Memory errors Several events or conditions can cause errors in individual memory cells, in multiple cells in different rows (a column failure), or in multiple cells in different columns - HP ProLiant SE2170s | HP Advanced Memory Error Detection Technology - Page 4
continue to work even if a second chip has an error or fails. Intel Xeon systems support DDDC in lockstep memory mode. In lockstep mode, two 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 SE2170s | HP Advanced Memory Error Detection Technology - Page 5
example, an HP ProLiant DL580 G7 server fully populated of correctable memory errors and, after considering supported browser, even when the server is off. The administrator‟s ability to view the event log when the server is off can be beneficial when troubleshooting remote host server problems - HP ProLiant SE2170s | HP Advanced Memory Error Detection Technology - Page 6
then better plan downtime to replace degraded DIMMs, avoiding the unplanned downtime associated with a non-recoverable 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 - HP ProLiant SE2170s | HP Advanced Memory Error Detection Technology - Page 7
. In the ProLiant System ROM upgrade (version May 2011 or later), we have enhanced memory error protection with HP Advanced Memory Error Detection Technology. the prediction of critical memory error conditions, this technology prevents unnecessary DIMM replacement and increases server uptime. 7 - HP ProLiant SE2170s | HP Advanced Memory Error Detection Technology - Page 8
ProLiant Servers - SYSTEM ROM UPGRADE REQUIRED - HP Advanced Error Detection Technology Increases Server hp.com/bc/docs/support/SupportMan ual/c00256987/c00256987.pdf http://h20000.www2.hp.com/bc/docs/support/SupportMan ual/c02126499/c02126499.pdf Send comments about this paper to TechCom@HP
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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8