Oracle and DRBD - a real HA alternative?
- From: Uwe Küchler <uwe@xxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Thu, 21 Jan 2010 16:57:06 +0100
Dear fellow oracle-l'ers,
recently I stumbled over a high availability (HA) concept for an Oracle
DB server that involves DRBD, at least for the OS and storage part. The
concept was presented by an outsourced server provider to their customer.
What made me wonder is, that the customer wants HA for the _database_
and not only for the storage. As far as I know, DRBD only covers the the
OS and storage level and not the Oracle Server itself - that's why I'd
like to suggest using Data Guard or maybe even RAC.
Does anyone here have practical experience in running DRBD with Oracle
Server? Is it possible to create anything near to Data Guard
functionality with it? How would you implement a transparent application
failover? What about split-brain situations?
Lots of questions, I know. But maybe you can show me a few good pointers
to tell me "it's possible at all" or "Oracle Server failover isn't
possible with DRBD".
Have a good day!
Uwe
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