System Wide - Storage Subsystems

System wide storage subsystem reports provide detailed information about the monitored storage subsystems in your environment. Select beside the name of the storage subsystem for which you want to view detailed information.

You can generate and sort the data within storage subsystem reports using the following By Clauses:

• By Storage Subsystem
• By Capacity

Each row in the report gives you information for each storage subsystem. The following table describe the fields available through each of the By Clauses:

Field Name	Description
Name	name/alias of storage subsystem
Disk Capacity	total raw disk space in the storage subsystem
Disk Unallocated Space	Total unformatted disk freespace of the storage subsystem For Hitachi Data Systems storage subsystems, internal disk information is not available. This field will be 0.
Number of Disks	total number of disks in the storage subsystem
Number of LUNs	total number of LUNs defined in storage subsystem Note: not all are necessarily accessible
LUN Capacity	total LUN capacity of storage subsystem including inaccessible LUNs
Usable LUN Capacity	storage capacity of LUNs in the storage subsystem (not including BCVs, VCM database, and Replication targets). Includes inaccessible LUNs. (EMC only) Note: for IBM ESS, IBM DSxxxx, HP StorageWorks, and Hitachi Data Systems storage subsystems, this column is the same as LUN Capacity.
LUN Capacity Visible to Data Manager	Capacity of all LUNs visible to Data Manager agents
LUN Capacity not Visible to Data Manager	Usable LUN capacity minus assigned LUN capacity
Overhead	storage space used by mirroring or RAID (amount of capacity that is dedicated to redundancy)
Formatted Capacity	(IBM ESS, IBM DSxxxx, HP StorageWorks, and Hitachi Data Systems only) total amount of formatted storage space in the storage pools associated with the storage subsystem. For example, a RAID volume space has more capacity than a stripe-mirror volume space.
Formatted Space with No Volumes	(IBM ESS, IBM DSxxxx, HP StorageWorks, and Hitachi Data Systems only) amount of storage space available to allocate to LUNs in the storage pools associated with the storage subsystem.
Assigned LUN Capacity	storage capacity of LUNs in the array that are visible to computers where Data Manager agents are installed
Unassigned LUN Capacity	usable LUN capacity assigned to each computer minus the assigned LUN capacity
Total Overhead	(IBM ESS only) sum of all the space in a disk group minus the formatted capacity.
Unformatted Disk Group Capacity	raw disk space in ranks on which no volume space has been defined
Cache	amount of RAM or other cache for a storage subsystem
Manufacturer	manufacturer of a storage subsystem
Model	model of a storage subsystem
Serial Number	serial number of a storage subsystem
Firmware Revision	microcode (OS) level
Subsystem Assigned LUN Capacity	total storage capacity of all LUNs that the storage subsystem knows are assigned to a host computer
Storage Subsystem Unassigned LUN Capacity	total storage capacity of all LUNs that the storage subsystem knows are not assigned to a host computer Note: the column will appear blank for San Volume Controller (SVC)
Subsystem Total Formatted Free Space	Storage Subsystem Unassigned LUN Capacity + Formatted Space with No Volumes (i.e., formatted capacity in the storage subsystem that is not allocated to a LUN and is not assigned to a host computer) Note: this column will appear blank for San Volume Controller (SVC).
zOS Lun Capacity	total storage capacity for all the LUNs allocated to zOS. Data for this column is calculated for ESS only--the value for this column is set to 'N/A' for other storage subsystems.
Open System LUN Capacity	total LUN storage capacity (excluding the zOS LUN capacity)

See Asset Reporting - System Wide Overview for more information.