RE: multi-home servers

>> those of you out there running multiple oracle homes,
Yes, 10.5, 11.1 and 11.2

>> potentially with multiple oracle software owners and
No, just the "oracle" user.

>> certainly with multiple listeners on Linux. How do you
Yes, one application = one listener.

>> control db and listener startup at boot time? dbstart seems
>> entirely inadequate.

OS = Linux = SLES 11 [SP 1 I think]

1. We installed the orarun package. That gives us, amongst other things, /etc/sysconfig/oracle & /etc/init.d/oracle (aka /etc/sbin/rcoracle).
2. I wrote a bash script (spookily named "listeners" - happy to share) to control the listeners because setting the parameter in /etc/sysconfig/oracle ONLY starts the default listener named LISTENER - which we don't use.

The script does various things:

• Sources the /etc/sysconfig/oracle config file and check if the databases are to be started (and by inference, stopped) automatically. If so, continue, else bale out.
• Scans /etc/oratab looking for Oracle Homes.
• De-duplicates the list.
• For each discovered Oracle Home, look in network/admin for a file named listener.ora.
• For each "sid_list_" found, extract the listener name.
• Sets the correct Oracle Home and start/stop the listener.

We decided to do it this way rather than messing with dbstart/dbshut etc, as every time we get a new release of Oracle, there's a possibility of our changes being forgotten, overwritten etc.

The script, listeners, is installed to run at run level 3 and 5 - same as the oracle script. It also has a symlink to /etc/sbin/rclisteners so that it can be manually called (by root) with start or stop parameters.

Cheers,
Norm.

Norman Dunbar
Contract Senior Oracle DBA
Capgemini Database Team (EA)
Internal : 7 28 2051
External : 0113 231 2051

Norman Dunbar
Contract Senior Oracle DBA
Capgemini Database Team (EA)
Internal : 7 28 2051
External : 0113 231 2051

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