RE: Oracle Fail Safe

  • From: "Taylor, Chris David" <ChrisDavid.Taylor@xxxxxxxxxxxxxxx>
  • To: "'JJReimer@xxxxxxxxxxxxxx'" <JJReimer@xxxxxxxxxxxxxx>, 'Oracle-L' <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 11 Nov 2011 10:40:52 -0600


It's an active-passive configuration, so there is still some minimal downtime 
when a node goes down as the cluster moves to the other node. (You probably 
already knew that, but sometimes it bears repeating).

I like it for what it does.  It adds a level of complexity to your DBA 
activities though.  For example, configuring the Oracle Agent for Grid Control 
on a Windows Cluster requires you to create a "VirtualAgent" directory on the 
shared storage.  Not terribly complicated but requires the cluster to be moved 
to the 2nd node as part of the configuration.  (Note Id: 464191.1)

Make sure you use the latest version of Oracle FailSafe downloadable from OTN 
and apply any patches from Oracle support.  Prior to the latest version you 
couldn't have both 10g and 11g instances running in the cluster (as I found out 
after I tried to add a new 11g installation).

There's an additional component called Oracle FailSafe manager (I believe it 
is) that can be installed but is not required.  It however is (was?) only 
supported on Windows 32-bit systems and would crosscheck your cluster 
configuration and do some administrative tasks by running the commands for you. 

Once I went through the process and figured out what that particular tool did, 
I realized it was really needed so I add my resources to the cluster manually 
now which I think is more straight forward.

We have 7 oracle databases running on our cluster and when we initiate a 
failover, it takes approximately 3 minutes to move all the resources over and 
have them online.  An actual surprise failover is a bit quicker since in that 
case the cluster doesn't have to shut down the databases on the primary node as 
they are already down.

If you have an Oracle Users Group near you, it would probably be of benefit to 
tap into them and see if they have any Oracle guys who have FailSafe setup and 
be willing to do a bit of consulting (looking over your shoulder as you do the 
setup/installs) on the initial setup/configuration.

Chris Taylor
Sr. Oracle DBA
Ingram Barge Company
Nashville, TN 37205

"Quality is never an accident; it is always the result of intelligent effort."
-- John Ruskin (English Writer 1819-1900)

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-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of Reimer, John J.
Sent: Friday, November 11, 2011 10:15 AM
To: Oracle-L
Subject: Oracle Fail Safe

Does anyone have any experience with Oracle Fail Safe?  We are looking into 
this as an option for High Availability of our Oracle databases running on 
Windows.  It is supposed to work with MS clustering for server failover.  From 
what I have found, it is available for standard or enterprise editions of 
Oracle, and there is no additional cost.  Any opinions, good or bad, would be 



John Reimer


Cooper Tire and Rubber Company




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