Informix Storage Migration via Mirroring


IBM Informix Dynamic Server (IDS) databases reside in "dbspaces", each composed of one or more "chunks" (files, logical volumes or whole disk devices). If the storage infrastructure is being upgraded, you might find that moving chunks via backup & restore or external copy would take longer than the outage window allows, particularly if this is between different sites.

This article describes a method of achieving this with only a very short downtime using Informix chunk mirroring.