Enabling remote load source mirroring makes it possible for the two disk units of the load source mirrored pair to be on different I/O processors or system buses. Remote load source mirroring allows you to protect against a site disaster by dividing the disk storage between the two sites, mirroring one site to another. You must enable remote load source mirroring before starting mirrored protection for disk pool 1. If remote load source mirroring support is enabled after mirrored protection has already been started for disk pool 1, the existing mirrored protection and mirrored pairing of the load source is not changed.
Remote load source mirroring support can be enabled in either the DST or the SST environment in iSeries™ Navigator or the character-based interface. If you attempt to enable remote load source mirroring and it is currently enabled, the system displays a message that remote load source mirroring is already enabled.
To enable remote load source mirroring using the character-based interface, do the following: