Re: Full Mirroring and Oracle?

If the two machines *both* have access to the disks *and* the migration can be handled by your UNIX OS then yes it is possible. You'll also have to swap the ip addresses of the nodes over to keep the networking access working.

I've used HP's Switchover product on HP-UX based systems to do this in the past for mirrored drives shared by two CPUs. NB. this type of switch is cheap and completely automatic, but there is a period of downtime while the standby machine reboots with the configuration that was running on the primary machine (including Oracle). If you want somethng transparent you'll have to look at clustering or the like, which can prove a lot more expensive.

Steve Phelan.

Muli Koppel wrote:

> Hello,
>
> Wh have two unix machines, one Primary, the other one Backup.
> Full RAID is implemented, so each bit written to the Primary is backed
> up
> to the Backup simultaneously.
>
> Let alone, the Backup machine has an equal File System structure and
> naming
> conventions.
>
> Will I be able to start the Oralce on the Backup Machine after a
> Primary
> crash?
>
> (I'm trying to avoid using a standby database).
>
> Any experience concerning this matter will be very very appreciated.
>
> Thanks in advance,
>
> Muli Koppel,
>
> BARAK ITC
Received on Thu Jun 12 1997 - 00:00:00 CDT