HP 376227-B21 - ProLiant InfiniBand 4x Fabric Copper Switch Biała księga - Strona 12
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representative in order to gather the needed patches and information necessary to enable uDAPL and
OCFS support.
Verifying that the uDAPL protocol is being used for inter-node communication
Once all of the Oracle software components have been successfully installed and a database has
been created, the alert log can be examined to determine if the instance is using uDAPL for inter-
instance communication. The alert log should contain output similar to the following:
db_name
open_cursors
pga_aggregate_target
Mon Dec 6 11:58:42 2004
cluster interconnect IPC version: Oracle UDAPL Jul 1 2004 06:25:39
IPC Vendor 1 proto 1 Version 1.0
PMON started with pid=2,
DIAG started with pid=3,
LMON started with pid=4,
The cluster interconnect IPC version field indicates which protocol is being used across the
interconnect.
Alternatively, the following procedure can be used to determine if the database instance is using
uDAPL:
• Open a sqlplus session and connect as sysdba.
Enter the following commands at the sqlplus prompt
10.
Oradebug setmypid
Oradebug ipc
Check the location specified in the user_dump_directory initialization parameter for the latest .trc
11.
file.
Once the system has successfully been configured to use the uDAPL protocol, the installation is
complete.
Conclusion
Due to its architecture, an Oracle RAC requires a high performance interconnect to achieve high
levels of scalability. The HP InfiniBand products can be deployed to provide an Oracle Real
Application Cluster with a high bandwidth, low-latency interconnect.
Oracle Real Application Cluster environments have a reputation of being difficult to integrate and
deploy successfully. The HP Parallel Database Cluster kit and accompanying fixed price service can
greatly reduce the complexity involved in deploying an Oracle RAC system.
= orcl
= 300
= 25165824
OS id=28186
OS id=28191
OS id=28197
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