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Home -> Community -> Mailing Lists -> Oracle-L -> Re: RAC or Oracle Fail Safe
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RE: RAC or Oracle Fail Safe
Hi!
Of course you have to plan your servers' capacity accordingly, that in =
the event of node failure, the other node will not get too loaded. When =
one node crashes, the second one has to deal with queries and =
transactions of both servers and we must not forget, that also rollback =
of failed nodes uncommitted transactions has to be done!
Of course when you got more nodes, then the impact of one node failure = would be smaller..
Tanel.
Here I would beg to differ. RAC is more safe. _Almost_ half of your = online user (who are on surviving node) won't even notice the node =
failure when one node in a RAC environment goes down. And those who were = unlucky users (connected to failed node), can connect immediately to the = surviving node, without any delay. Of course you need to configure these =parameters manually. While in OFS environment your users have to wait = till the time surviving node brings up the database and all related = services (listener etc) completely.=20
The price you may for these features is more money and more complex = database environment to manage.
=20
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