failover of transparent applications on the node test system 2 with 9i RAC

Hi gurus,
I'm trying to configure transparent applications on my 2 test 9i RAC node failover. 9i RAC (installed due to RAM limitations)

The tnsnames.ora on node1 and node2 are fairly simple with the exception of the IP address.
ORCL. EZHOME.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.2.3)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
)
)

To test the TAF, I connect to my laptop sqlplus customer who has the following tnsnames.ora

LISTENERS_ORCL. EZHOME.COM =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.2.3)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.2.4)(PORT = 1521))
)

ORCL. EZHOME.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(LOAD_BALANCE = YES)
(FAILOVER = ON)
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.2.3)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.2.4)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ORCL. EZHOME.COM)
(SERVER = DEDICATED)
(FAILOVER_MODE =
(TYPE = SELECT)
(METHOD = BASIC)
)
)
)
ORCL1. EZHOME.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.2.3)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ORCL. EZHOME.COM)
(SERVER = DEDICATED)
(INSTANCE_NAME = ORCL1)
(FAILOVER_MODE =
(BACKUP = ORCL2. EZHOME.COM)
(TYPE = SELECT)
(METHOD = BASIC)
)
)
)
ORCL2. EZHOME.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.2.4)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ORCL. EZHOME.COM)
(SERVER = DEDICATED)
(INSTANCE_NAME = ORCL2)
(FAILOVER_MODE =
(BACKUP = ORCL1. EZHOME.COM)
(TYPE = SELECT)
(METHOD = BASIC)
)
)
)

Select instance_name, host_name,.
NULL AS failover_type,
NULL AS failover_method,
Failed_over NULL AS
V $ instance
UNION
SELECT NULL, NULL, failover_type, failover_method, failed_over
SESSION $ v
WHERE username = 'HR ';

RESULT:

INSTANCE_NAME HOST_NAME
FAILOVER_TYPE FAILOVER_M ISP
----------------
----------------------------------------------------------------
------------- ---------- ---
orcl1 sunny1pub.ezhome.com

NO NO NO.

2 selected lines.

(1) as you can see, the failover_type, failover_method, failed_over are None, None, and no.. I searched the internet for the last couple days, but I can't find any sample files. Grateful if someone could send me an example of sample tnsnames.ora file.

(2) I need to have the LISTENERS_ORCL. EZHOME.COM? What is the purpose of use / of it?

Help, please. Thank you.

Hello

My tnsnames.ora on a client machine to a 10 g RAC, it is similar...

ORCL =
(DESCRIPTION =
(LOAD_BALANCE = ON)
(FAILOVER = ON)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = rac1-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP) (HOST = rac2-vip)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCL.mycomp.com)
(FAILOVER_MODE =
(TYPE = SELECT)
(METHOD = BASIC)
(RETRIES = 10)
(TIME = 1)
)
)
)

Only this alias nothing more.

See you soon,.

Rodrigo Mufalani
http://mufalani.blogspot.com

Published by: Mufalani on 02/07/2009 14:19

Tags: Database

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