Oracle Online backup over network

[VARITRONIX]

I have 2 HPUX servers and running cluster service. One of them runs Oracle, another one runs application. I have only 1 backup device which is attached to the application server. Whenever I do an Online Backup for Oracle tablespaces, I have to switch the cluster to the application server. Which means, I have to bring down the system first.

I've tried "remsh" and "dd" before, however, "dd" does not allow to append a tar job. Is there any other ways so that I don't have to bring down the system before doing backup? (Oh, physcially switch the backup device would not be considered as a solution =)

[Alexander M. Ermes]

Hi there.
We have two N4000 as a cluster and a DLT4/40.
The tape device is connected to the machine with the lower load. The machines are connected with a crossover patch cable in a private network ( ethernet & ip addresses like 192.168.0.nnn ). Thus we can do a backup of the machine with no backup device or software
through this network connection.
Rgds
Alexander M. Ermes

[Miguel A. Aliaga]

Hi, try to use the NFS services.
The database server should export the File Systems where the database is on, and the aplication server should mount it and copy it directly.

Are you using File System or Raw Devices for the database ?????

[VARITRONIX]

Thanks for your replies.

My database is stored in file systems, not raw device. As the Oracle server boot up, it mounts up those file systems in cluster.

How can I use NFS to export and mount in application server?