Oeacle10g RAC Background Processes

RAC:
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Cluster: - Interconnected nodes act as a Single Server

- A cluster consists of multiple interconnected servers that appears to end users and applications as if they are one single server

- Multiple instances on different nodes access database files in Shared Storage

- Instances communicate through private interconnect(s).

Benefits of RAC:
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High Availability :- If one node failure, other nodes in the cluster can continue to operate and availability of database

Scalability:- Multiple instances allows clustered database to scale

Manageability:- Multiple legacy database can be consolidated into a single RAC database reducing management complexity

Cost of ownership:- RAC can be deployed on industry standard,reducing cost of purchasing maintenance and support

RAC Background Process:
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These background processes are supporting the multi-instance coordination:

LMON: Global Enqueue Service Monitor
Monitor entire cluster to manage the global enqueues and resources
LMON provided services are also known as Cluster Group Services(CGS)

LMDx: Global Enqueue Service Daemon(LMD)
lock agent process that manages for Global Cache Service enqueues to control access to global enqueues and resources

LMSx: Global Chase Service Processes, Handled remote(GCS). Upto 10 GCS cluster software provides

LCKx: Lock Process, Manages the global enqueue requests and the cross-instance broadcast(workload automatically shared and balanced when there are multiple Global Cache Service Process(LMSx)

DIAG: Diagnosibility Daemon
Monitoring the health of the instance and capture the data for instance failure process

RAC learning and download,install links

Installing Oracle 10g release RAC on Linux:
http://www.oracle.com/technology/pub/articles/smiley_rac10g_install.html


Project Guide for RAC:
http://www.oracle.com/technology/pub/articles/haskins-rac-project-guide.html?rssid=rss_otn_articles

Oracle RAC best practises(pdf for download):
http://www.pdf-word.net/tutorial-database-oracle/oracle-rac-best-practices-on-linux.html

Softwares for Oracle DBA (downloadable):
http://www.brothersoft.com/downloads/oracle-dba-tutorial.html

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Instructor led 5-day RAC training course:
http://www.training-classes.com/learn/_k/o/r/a/oracle_10g_rac/_t/ilt/
About(2750 pounds,not sure)
http://www.oracle.com/technology/oramag/oracle/06-nov/o66resources.html

Davis Burleson RAC courses:
http://www.dba-oracle.com/t_oracle_rac_course.htm

(about 1500$ in Fermont,usa)
http://www.askedu.net/course/c_79248_ORACLE_9i_RAC.htm

free ebook and tutorial - Oracle 9i RAC and the Red Hat Global File System:
http://ebook-acrobat-files.blogspot.com/2008/02/free-ebook-and-tutorial-oracle-9i-rac.html


RAC tutorials:
http://rapidlibrary.com/index.php?q=oracle+rac+video+tutorial

Web based learning available for RAC and other Oracle courses(price unknown):
http://www.learnquest.com/CourseOutlineDisplay.asp?coursenumber=DBOR-750

WEb based and classroom teaching available for RAC,Dataguard and other oracle based (price unknown)
http://www.trubix.com/detail2.php?course_id=215

400$ course in RAC in orange county,USA:
http://orangecounty.craigslist.org/lss/889646370.html

RAC seminar(1200$)
http://www.exitcertified.com/training/course/oracle/database_grids/11g/11g-rac-sem/database_11g_rac_concepts_architecture.html

Online learning from different tutors(price varies from 1000$):
http://www.learnersparadise.com/mentors/cgi-bin/courseProfile.pl?course_id=2128

TUSC RAC course for 2325$:
http://www.tusc.com/oracle/training/course-rac.html

Oracle RAc course at 3499$:
http://www.oraclecollege.com/courses.html

The costs just seem to keep increasing! Anyone knows of a cheaper place to learn RAC, then do send it in.

RAC 10g- Introduction, Installation

Reference: http://advait.wordpress.com/oracle-real-application-cluster-10g/

RAC - Introduction, Installation

Reference: http://advait.wordpress.com/oracle-real-application-cluster-10g/