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Oracle Tips by Burleson |
10g Grid Computing
with RAC
Real Application Cluster Architecture
ECC Memory
Error Correcting and Checking (ECC) memory
detects and corrects all single bit errors without impacting the
operation of the system. It also detects all, and corrects some,
double-bit errors. All error correction events are logged by the
system.
IBM Chipkill memory is a good example. Chipkill
ECC memory and automatic server restart features work to minimize
server downtime. With the latest Chipkill memory technology
available in select IBM xSeries and Netfinity servers, they are
protected from any single memory chip that fails and any number of
multi-bit errors, from any portion of a single memory chip.
To give another example, in Sun systems, memory
error correction code has been adopted on all servers to minimize
system downtime caused by faulty single inline memory modules
(SIMMs) and dual inline memory modules (DIMMs).
Redundant
Networking Component
To avoid network I/O channel failures, this
provides redundant physical elements in the path between the server
and the network backbone, which includes network interface cards,
cables, and patch panels.
The above text is
an excerpt from:
Oracle 10g Grid & Real Application
Clusters
Oracle 10g
Grid
Computing with RAC
ISBN 0-9744355-4-6
by Mike Ault, Madhu Tumma
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