Hi,

I would like to design a backup and restore concept for Informix with
a storage cluster technology. For the backup we would use the disk
mirror option of the cluster software. The storage cluster can do an
atomar split on mirrored disks. So I would like to ask if I can do the
external backup without blocking the whole database (onmode -c block).
I think that maybe a checkpoint with (onmode -c) is ok. And after the
checkpoint I would like to split all mirrored disks.
The split is really atomar to all disks. So they they will be splitted
all in the same time. There is no IO while the split is in progress.
Is it under these circumstances possible to don't block the database?

Christian Schmidt.