Host Storage Reports Tracking the storage resource allocation and usage is essential to large Information Technology departments. Unallocated and underutilized storage can be put to better use. Historical trends at a business entity level enable you to plan for future growth.
Storage Details are relevant to Enterprise Manager targets that are associated with one or more hosts. In particular:
Summary attributes presented are rolled up for one or multiple associated hosts.
Storage Details link in a host target presents the storage details of the given host. This information aides you in tracking the storage resource allocation and usage and provide you with historical usage trends.
Storage Details link in a group target presents the storage details of all the hosts associated with the group.
A host is associated with a group either through:
Explicit membership, or
Implicit hosted by association which is inherited through a group member target
The top half of the Storage Details page displays the following charts:
The Overall Utilization chart presents summary attributes (unallocated, overhead, used, and free) that provide system level view of storage resource utilization. See Overall Utilization section in the About Storage Computation Formula help topic for details on how this information is calculated.
The Provisioning Summary chart presents allocation related summary attributes (allocated, unallocated, and overhead) for File Systems (Writeable NFS part), ASM, Volumes, and Disks for the associated hosts.
Note that Writeable NFS is shown in Provisioning Summary to account for the storage attached to the host over NFS. These layers are managed by IT administrators who are responsible for provisioning space to applications.
Allocation related attributes do not change frequently, change typically results from an administrative action taken by an IT administrator. See Provisioning Summary section in the About Storage Computation Formula help topic for details on how this information is calculated.
Consumption Summary provides you with usage related summary attributes (used and free) for Databases, File Systems (Local File Systems and Writeable NFS parts). These layers consume storage provided by the layers mentioned in the Provisioning Summary section above.
Usage related attribute values tend to change more frequently relative to allocation related attributes. See Consumption Summary section in the About Storage Computation Formula help topic for details on how this information is calculated.
About Storage Computation Formulas
Enterprise Manager Information Roadmap
Copyright © 1996, 2007, Oracle. All rights reserved.