Re: database High Availability

Hi,

If you are willing to examine 3rd party solutions, you should examine DataMirror's iReflect. iRelect was designed as a high availability solution for Oracle-based computing environments. iReflect has the ability to detect primary system failure and invoke operational switching.

iReflect's flexible architecture supports one-to-many, many-to-one and two-way replication scenarios and uses intelligent database-level mirroring. The solution mirrors Oracle database transactions from the primary system to the recovery system in real-time. iReflect is easy to configure and supports log-based replication of Oracle databases. Additional information is available at www.datamirror.com if you wish to investigate further.

Cheers,
Amy Stearns

"Stephen Tam" <kwtam_at_ti.com> wrote in message news:<b2vjbn$c6r$2_at_tilde.itg.ti.com>...
> Hi,
> What are the methods available on database HA ? what is the cost ?
>
> For no cost approach .....
> Can I use a watch dog type of process install on both unix servers to check
> if
> the instance is not started in Server A, then I automatically start it in
> server B ?
> Is oracle database built-in with the semaphore type of checking to ensure
> only one
> same instance being started at one time ? Is there a risk of corrupting the
> DB ?
>
> Really appreciate your advice.
>
> Thanks
> Rgds
> Tam
Received on Mon Mar 10 2003 - 12:54:44 CST