Array Capacity & Utilization (Hitachi Arrays & HDP View)

Explore your data center using customizable report templates or by using parts of your IT infrastructure as entry points. Use Search to find reports, templates and dashboards across the portal.

Use the Reports tab to examine the catalog of templates, dashboards and reports - organized by products along with user-created, and system folders. This report is located here:

Capacity Manager > Array Capacity & Utilization > Array Capacity & Utilization

The Array Capacity and Utilization report provides an overview of storage array capacity and utilization. Use this report to identify storage arrays that are under utilized or highly utilized.

The Array Capacity & Utilization report represents Hitachi Arrays and Hitachi Dynamic Provisioning (HDP) in the following manner:

Table: Array Capacity & Utilization (Hitachi Arrays & HDP View)

Column name	Description
Storage Array	The name that you assigned to the array. Available values include all supported storage devices. For a list of supported devices, see the Certified Configurations Guide.
Family	The family classification of the storage array as assigned by the vendor. Use this name to ascertain the vendor's product specifications.
Type	The specific model of the storage array.
Vendor	The name of the vendor that distributes the storage array.
Product	The name of the product, typically shown as a series number. This field provides an indicator of capacity specifications, such as LUNs, hosts per array, and drives per array.
# Ports	The number of ports in the array. Click the value to view the Array Port Utilization.
# Disks	The number of disks in the array.
# Hosts	This is the total number of unique hosts that have LUNs assigned by this storage array, and the hosts have been successfully queried using one or more host resource policies. If zero, host resources data has not been collected. See Host Capacity & Utilization .
Host Usage	Links to the LUN Utilization Summary. See LUN Utilization Summary .
% Used	The percentage of the storage that is currently used.
Physical Summary
Raw Capacity	For HDS arrays: Sum of capacity of all PDEVs from all array groups. When calculating raw capacity for HDS arrays, the data collector makes requests to the Device Manager for physical devices (PDEVs) for all Array Groups in a storage array. The data collector assumes that all PDEVs are part of an array group, so PDEVs that are marked as not included in an array group (-1) are included in the capacity calculation. That is, no disks are treated as spares.
Configured RAID	Total raw capacity of the LUNs in the array that have been mapped to a host. These LUNs are typically configured as volumes on the host and dedicated to an application.Unallocated storage is storage that is not part of an Array Group.
Available	Total raw capacity of the array that has not been allocated. The size is displayed in the units you selected with the Advanced option when you generated the report.
% Available	Expressed as a percentage, total capacity of the LUNs in the array that have not been assigned to a host and that are available for provisioning. This percentage is a better capacity indicator than the number shown as Available Size.
# RAID Groups	The number of array groups in the storage array. See List Array Groups .
Usage	Expressed as a percentage, total capacity of the LUNs in the array that have been assigned to a host and that are not available for provisioning.
Usable Summary (post-RAID)
Internal Capacity	Amount of usable capacity from physical RAID groups.
External Capacity	Applicable to HDS arrays only - Capacity from block storage, derived from daisy-chained external storage. This is array group capacity that does not have PDEVs in the storage array.
Used Capacity	Amount of internal RAID group capacity allocated to LUNs.
Free Capacity	Amount of available capacity in RAID groups from which to allocate LUNs.
Usage	Thermometer with a tooltip that displays the RAID Group Usage percentage
Dynamic Provisioning
# Pools	The number of dynamic provisioning pools links to the Dynamic Provisioning Pool Summary
Capacity	The Dynamic Provisioning capacity for this array
Used	Amount of the dynamically provisioned capacity in use
Free	Amount of the dynamically provisioned capacity that is available.
DP Usage	Mouse over this thermometer to view the usage.
LUN Summary
# Open Reserved LUNs	For Hitachi USP arrays, these are reserved LUNs that cannot be assigned to hosts; for example, dynamic pool capacity. No paths can be set for these LUNs.
Open Resv LUN Capacity	For Hitachi USP arrays, this is the capacity of the reserved LUNs that cannot be assigned to hosts; for example, dynamic pool capacity. No paths can be set for these LUNs.
# Open Allocated LUNs	The number of open LUNs (volumes) that have set paths.
Open Alloc LUN Capacity	Represents the capacity of the open LUNs (volumes) that have set paths.
# Open Unallocated LUNs	The number of open LUNs that do not have set paths.
Open Unalloc LUN Capacity	The capacity of the open LUNs that do not have set paths.
# LUNs	Number of LUNs present in the storage array.
Total LUN Capacity	Sum of the capacity of all LUNs for the storage array.
LUN Usage	The percentage of the LUN that is allocated.

Array Capacity & Utilization (Hitachi Arrays & HDP View)

Feedback

Feedback