Re: 10g Clusterware (Oracle CRS) documentation ?

From: Dimitar Radoulov <cichomitiko_at_gmail.com>
Date: Thu, 7 Apr 2005 00:11:28 +0200
Message-ID: <d04e2c6a050406151115228ee1@mail.gmail.com>

MetaLink Note:259301.1

CRS and 10g Real Application Clusters

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CRS DAEMON FUNCTIONALITY

Here is a short description of each of the CRS daemon processes:

CRSD:
- Engine for HA operation

Manages 'application resources'
Starts, stops, and fails 'application resources' over
Spawns separate 'actions' to start/stop/check application resources
Maintains configuration profiles in the OCR (Oracle Configuration Repository)
Stores current known state in the OCR.
Runs as root
Is restarted automatically on failure

OCSSD:
- OCSSD is part of RAC and Single Instance with ASM

Provides access to node membership
Provides group services
Provides basic cluster locking
Integrates with existing vendor clusteware, when present
Can also runs without integration to vendor clustware
Runs as Oracle.
Failure exit causes machine reboot. --- This is a feature to prevent data corruption in event of a split brain.

EVMD:
- Generates events when things happen

Spawns a permanent child evmlogger
Evmlogger, on demand, spawns children
Scans callout directory and invokes callouts.
Runs as Oracle.
Restarted automatically on failure

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HTH Dimitar

Original Message ----- From: "Christo Kutrovsky" <kutrovsky.oracle_at_gmail.com> To: "oracle-l" <oracle-l_at_freelists.org> Sent: Wednesday, April 06, 2005 9:34 PM Subject: 10g Clusterware (Oracle CRS) documentation ?

> Hello All,
>
> I am having really hard time finding information about the 10g
> clusterware. I keep seeing references here and there to obscure
> executables in /app/crs/bin, but no other information whatsoever.
>
> Anyone having any aditional sources of information about Oracle 10g
> cluster ready services (clusterware) ? Especially all executables in
> /app/crs/bin ?
>
> -- 
> Christo Kutrovsky
> Database/System Administrator
> The Pythian Group
> --
> http://www.freelists.org/webpage/oracle-l

--
http://www.freelists.org/webpage/oracle-l

Received on Wed Apr 06 2005 - 18:15:20 CDT