Multiple database configuration for scan ip.

Hi All,
I am planning to implement 11gR2.
Grid infrastructure is already done. Now i need to create 4 database in the same oracle home.
There is a separate listener for each database with different port.
As i scan ip is configured using 1521 port.
My question is will my scan vip will work to connect to the database remotely if will give tnsstring with scan ip.
For e.g
for database 1, we are using port 1522
MYDB
(DESCRIPTION=
(ADDRESS=(PROTOCOL=TCP)(HOST=t24db-scan)(PORT=1522))
(CONNECT_DATA=(SERVICE_NAME=master)))
for database 2, port is 1523
MYDB
(DESCRIPTION=
(ADDRESS=(PROTOCOL=TCP)(HOST=mydb-scan.ORACLE.COM)(PORT=1523))
(CONNECT_DATA=(SERVICE_NAME=master))
Please suggest ,
Thanks and Regards,
jatin

Jatin,
If there is a request to bring down a database, you will just shutdown that database. You should not shutdown the listeners, as they serve other databases.
Now that all listeners are running out of GRID Home (not database home), this is totally managed by CRS. We dont have to worry about managing them.. lets just manage the database. Same applies to patching also.. you need to bring down all services in the database home to apply the rdbms patches.. at this time, listeners can still be up (as they are not running out of database home).
Thanks,
Raj Mareddi

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