HP ProLiant DL388p HP Advanced Memory Error Detection Technology
HP ProLiant DL388p Manual
View all HP ProLiant DL388p manuals
Add to My Manuals
Save this manual to your list of manuals |
HP ProLiant DL388p manual content summary:
- HP ProLiant DL388p | HP Advanced Memory Error Detection Technology - Page 1
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...8 - HP ProLiant DL388p | HP Advanced Memory Error Detection Technology - Page 2
to ensure data reliability and protection. In 1999, we introduced the Pre-Failure Alert notification system to monitor and predict potential problems with critical components such as system memory modules (DIMMs). The notification system sends an alert to a system administrator when a DIMM exceeds - HP ProLiant DL388p | HP Advanced Memory Error Detection Technology - Page 3
Each DDR3 DRAM chip contains billions of memory cells ordered in eight banks (arrays) of rows and columns. Using a 2 Gb x4 DRAM chip as an example, each bank contains 210 (1,024) rows and 216 (65,536) columns, totaling more than 256 million cells per bank and more than 2 billion cells per chip. Each - HP ProLiant DL388p | HP Advanced Memory Error Detection Technology - Page 4
chip fails, but the DIMM remains in operation, DDDC will 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 channels operate as a single channel so that each write and read operation moves a cache line two - HP ProLiant DL388p | HP Advanced Memory Error Detection Technology - Page 5
Integrated Management Log (IML) as shown in Figures 3A and 3B. The administrator can access the IML using a 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. 5 - HP ProLiant DL388p | 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 DL388p | HP Advanced Memory Error Detection Technology - Page 7
condition. As a result, administrators have unnecessarily or prematurely replaced good DIMMs at a cost of unnecessary downtime and repairs. In the ProLiant System ROM upgrade (version May 2011 or later), we have enhanced memory error protection with HP Advanced Memory Error Detection Technology. - HP ProLiant DL388p | HP Advanced Memory Error Detection Technology - Page 8
.www2.hp.com/bc/docs/support/SupportMan ual/c00256987/c00256987.pdf http://h20000.www2.hp.com/bc/docs/support/SupportMan ual/c02126499/c02126499.pdf Send for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be
HP Advanced Memory Error Detection
Technology
Technology brief
Introduction
.........................................................................................................................................
2
SDRAM technology
..............................................................................................................................
2
Memory errors
....................................................................................................................................
3
Traditional memory error classifications
..............................................................................................
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 information
............................................................................................................................
8