Administering the storage resource manager

The storage resource manager provides monitoring and control for storage resources within an RSCT peer domain.

The storage resource manager provides the interface between RMC and the physical and logical storage entities within the peer domain by mapping these entities to instances of the resource classes it provides. Running as a daemon process on each node in the peer domain, the Storage resource manager collects information about locally-attached physical disks (and related storage entities) and maps these to resource class instances. These separate views of the storage resources from each individual node are then collected together to provide the Storage resource manager with a global view of the storage resources within an RSCT peer domain. In a shared storage environment (in which multiple nodes within the peer domain have access to the same disk subsystem and therefore access to the same disks contained within the disk subsystem), the storage resource manager's global view of storage resources enables it to identify such shared disks and provide serial access through hardware reserves.