HP ProLiant SE2170s ISS Technology Focus, Number 11
HP ProLiant SE2170s Manual
 |
View all HP ProLiant SE2170s manuals
Add to My Manuals
Save this manual to your list of manuals |
HP ProLiant SE2170s manual content summary:
- HP ProLiant SE2170s | ISS Technology Focus, Number 11 - Page 1
these demands. In fact, 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. Because of these trends, memory errors are occurring more frequently in the industry. HP memory technology innovations The only true - HP ProLiant SE2170s | ISS Technology Focus, Number 11 - Page 2
all without taking down the server. • In 2003, HP introduced Hot Plug RAID memory in ProLiant DL760 G2 servers to protect against uncorrectable memory errors that would exposing the system to an uncorrectable (non-recoverable) memory condition. HP Advanced Memory Error Detection Technology analyzes - HP ProLiant SE2170s | ISS Technology Focus, Number 11 - Page 3
HP ProLiant servers, Integration note, February 2011 » HP Virtual Connect technology for the HP BladeSystem c-Class, Technology brief, February 2011 » Power Regulator for ProLiant servers, Technology brief, February 2011 » Implementing Microsoft® Windows Server® 2008 R2 Service Pack 1 on HP ProLiant
-
1 -
2 -
3
 |
 |
ISS Technology Focus
Number 11
In this issue:
»
New HP Advanced
Memory Error
Detection Technology
»
Meet the Expert
—
Melvin Benedict
»
Recent publications
ISS TechComm iTunes
New posts are now
available on Apple
iTunes, either check your
iTunes page or go to
ours:
iTunes page
.
Like us:
New HP Advanced Memory Error Detection Technology
More than a decade ago, HP introduced
the industry’s first pre
-failure
notification system, Pre-Failure Alert, 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 a predefined threshold for
correctable memory errors. This lets the administrator proactively
schedule server maintenance to replace a DIMM that may fail,
avoiding unexpected interruption of business operations. In the past
few years, memory errors have increased significantly throughout the
entire industry due to the growth in overall memory demand and the
increase in the number of bits per DRAM chip. This article describes
why memory errors are occurring more frequently. It also describes
the history of HP memory technology innovations and the new HP
Advanced Memory Error Detection Technology, which addresses the
growing number of memory errors.
Memory errors are on the rise
The growth of high-performance computing and highly virtualized IT
environments is driving the demand for higher DRAM chip density and
greater server memory capacity. Over the past few years, DRAM
density has increased from 512 Mb per chip to 4 Gb per chip. 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 servers. The memory capacity per application type has
grown even more. Maximum server memory capacity has also
increased to meet these demands. In fact, 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.
Because of these trends, memory errors are occurring more
frequently in the industry.
HP memory technology innovations
The only true protection from memory errors is to use a memory error
detection or correction protocol. Over the past 18 years, HP has
introduced several memory technology innovations to ensure data
reliability and protection:
•
In 1993, HP introduced Error Correction Code (ECC) to detect both
single-bit and multi-bit errors. ECC can correct single-bit errors.
•
In 1996, HP introduced Advanced ECC technology to improve
memory protection beyond standard ECC.