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  1. Home
  2. IT Analytics Help
  3. Section V. Report Reference
  4. Array Capacity Utilization Reports
  5. IBM SVC VDisk Summary

IBM SVC VDisk Summary

Detail reports are related to a specific enterprise object, such as a backup job. You can only access detail reports through a link presented in the context of a main report, providing additional information that augments the main report. Detail reports cannot be generated, customized, or saved, as they are specific to the report from which they were derived. They are not available in search results.

Explore your data center using IT Analytics 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 IT Analytics catalog of templates, dashboards and reports - organized by products along with user-created, and system folders. The main report is located here:

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

Then, select IBM SVC arrays for the report scope.

Then, click on # VDisksor # VDisks Allocated to Hosts.

The following view is available when only IBM SVC arrays are selected for the report scope. In addition, several related reports narrow the list of LUNs in the report:

  • IBM SVC VDisk Summary - Unallocated: Access this report from the Array Capacity & Utilization report by clicking on #VDisks Unallocated.

  • IBM SVC VDisk Summary - Allocated: Access this report from the Array Capacity & Utilization report by clicking on #VDisks Allocated to Hosts.

To display IBM SVC LUNs, along with LUNs from other storage vendors,

See LUN Utilization Summary .

See How IBM SVC Capacity Values Are Derived.

See Array Capacity & Utilization (HP 3PAR View).

Table: IBM SVC VDisk Summary

Column name

Description

LUN #

The LUN number

RAID Type

SVC RAID Type: Striped, Mirrored

Cluster

2-8 nodes comprise a cluster; 2 nodes comprise an I/O group

MDisk Group ID

The name of the MDisk group

Capacity

Total VDisk (LUN) capacity

Copy Capacity

Copy capacity includes mirrors

Real Capacity

Allocated VDisk capacity; the capacity that is available to hosts

Used Capacity

Amount of the allocated VDisk capacity (real capacity) that is used

Free Capacity

Free = Capacity - Real Capacity

Mirrored

Indicates if this LUN has a mirror

Space Efficient

Indicates if this is a thin-provisioned LUN

IO Group Name

The name of the I/O group to which this VDisk belongs

Estimated Used

From the host's perspective, the amount of storage used

Estimated Available

From the host's perspective, the amount of available storage

Host

Hosts that have storage allocated from this LUN

Host LUN

The name of the host to which storage from this LUN was allocated. Click on a host link to launch the Host Utilization Detail.

See Host Utilization Detail .

Mount Point

Mount point of the filesystem

Filesystem

The host's filesystem or drive name to which the LUN maps. LUNs simply appear as disks to hosts.

Volume Group

Volume group using storage from this LUN

Host Storage Domain

A logical group of LUNs that can be accessed by multiple hosts through the same physical storage port, with each host accessing its unique LUN. For security purposes, LUN masking is also coupled with this capability. For Hitachi arrays, this is the multi-hosted storage capability.

Array Port WWN

The array port world-wide name

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IBM SVC MDisk Groups

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