A high-availability question (standby , replication or ....)

Dear gurus !

A customer wants to have a backup database on a remote "in case of disaster" site.
That database needs to be as much in sync with the primary DB as possible, and a sort of failover must be implemented , i.e. if the primary site fails , the users will be AUTOMATICALLY routed to the secondary one .

I thought of 2 possible approaches :
multimaster asynchronous replication and a standby database. The problem is that AFAIK , there is no automatic failover in case of standby DB , i.e.. U need to issue "ALTER DATABASE ACTIVATE STANDBY DATABASE; " or something like that on a backup site.
>From the other hand multimaster replication sounds like a big headache .

So , gurus , what would U suggest ?
How do U implement HA on your sites ?

Thanks a lot in advance for your time.

Andrey.

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Author: Andrey Bronfin
  INET: andreyb_at_elrontelesoft.com

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