Drill down through your storage subsystem assets in a hierarchical manner. Data Manager provides reporting for individual storage subsystems (IBM ESS, IBM FAStT, HP StorageWorks, IBM TotalStorage DS6000, IBM TotalStorage DS8000, Hitachi Data Systems, etc.), any disk array subsystems whose SMI-S Providers are CTP certified by SNIA for SMI-S 1.0.2, and IBM SAN Volume Controller clusters.
For Disk Array subsystems, you can view information about:
For Virtualization systems, you can view information about:
Note: An IBM TotalStorage DS6000/DS8000 subsystem Extent Pool is labeled as a "Storage Pool" within Data Manager reports. Please refer to the storage pool information in the online help system to view information about extent pools.
Note: Some of these reports will contain inaccurate information if the following configuration is used:
In this situation, Disks and LUNs will appear to belong to both the IBM SAN Volume Controller and the disk array subsystem, and will be counted twice in system-wide reports. To avoid this situation, CIM/OM access should be set up for either the IBM SAN Volume Controller or for the disk array subsystems which it virtualizes.
This issue does not apply to ESS, DS6000, DS8000, and IBM FastT subsystems.
When you select the name of a storage subsystem, you can view the following information about that storage subsystem in the content pane:
|
Field Name |
Description |
|
Group |
name of the monitoring group to which a storage subsystem belongs |
|
Manufacturer |
name of the manufacturer of the storage subsystem |
|
Model |
model number of the storage subsystem |
|
Serial Number |
serial number of the storage subsystem |
|
Cache |
size of the storage subsystem cache |
|
Non-volatile Storage |
type of cache/memory used to protect the integrity of your data in case of disaster (for example, power failure) |
|
Firmware Revision |
microcode or operating system version |
|
Number of Disks |
number of disks associated with the storage subsystem For Hitachi Data Systems storage subsystems, internal disk information is not available. This field will be set to 1. |
|
Disk Capacity |
amount of storage space allocated to the disks associated with the storage subsystem For Hitachi Data Systems storage subsystems, this is the capacity of all the LUNs in the storage subsystem. |
|
Disk Unallocated Space |
amount of storage space available on the disks associated with the storage subsystem For Hitachi Data Systems storage subsystems, internal disk information is not available. This field will be 0. |
|
Formatted Capacity |
(IBM ESS, IBM FAStT, HP StorageWorks, IBM TotalStorage DS6000/DS8000, HP XP, and Hitachi Data Systems only) total amount of formatted storage space in the storage pools associated with the storage subsystem. |
|
Formatted Space with No Volumes |
(IBM ESS, IBM FAStT, HP StorageWorks, IBM TotalStorage DS6000/DS8000, HP XP, and Hitachi Data Systems only) amount of storage space available to allocate to LUNs in the storage pools associated with the storage subsystem. |
|
Total Overhead |
(IBM ESS only) sum of all the space in a disk group minus the formatted capacity. For FAStT, the consumed space in the storage pool is the sum of all the consumed space of the LUNs in the storage pool. |
|
Unformatted Disk Group Capacity |
amount of disk capacity that is available for creating storage pools. For IBM FAStT this is the total capacity of the disks that are not in a storage pool |
|
Undefined Disk Group or Array Site Capacity |
For IBM ESS and DS subsystems, this is the total raw capacity of any unformatted disk groups or array sites. For IBM FAStT, HP StorageWorks, and Hitachi Data Systems storage subsystems, this is the total capacity of the disks that are not in a storage pool. This value is not populated for other subsystems supported through SMI-S. |
|
Number of LUNs |
number of LUNs associated with the storage subsystem |
|
LUN Capacity |
amount of storage space allocated to the LUNs associated with the storage subsystem |
|
Last Probe Time |
date/time when the storage subsystem was last probed |
|
Last Probe Status |
indicates the success or failure of the last probe |
|
Probing Agent |
name of the agent assigned to probe the storage subsystem |
You can expand the name of a storage subsystem and view subnodes for its associated disk groups, array sites, ranks, storage pools, disks, and LUNs. Drill down further on the:
When you expand the Disk Group node, the Reporting facility displays a list of disk groups for the storage subsystem (IBM ESS only). The following information is provided for each disk group that you select:
|
Field Name |
Description |
|
Detail for Disk Group |
name of a disk group |
|
Storage Subsystem |
name of storage subsystem to which a disk group belongs |
|
Number of Disks |
total number of disks in the disk group |
|
State |
the redundancy by which the disk group is formatted |
|
Loop |
identifier of the SSA (Serial Storage Architecture) loop to which a disk group belongs |
|
Adapter Pair |
identifier of the adaptor ports that the SSA loop contains |
|
Array |
the array for this disk group given the SSA loop and adapters |
You can expand the name of a disk group to view the disks and storage pools within that disk group. Drill down through both Storage Pools and Disks subnodes to view:
(IBM TotalStorage DS8000 only)
When you expand the Array Site node, the Reporting facility displays a list of Array Sites for the storage subsystem. Click here to view a description of the information displayed about Array Sites.
You can expand the name of an Array Site to view the Ranks, Storage Pools, and Disks associated with that Array Site.
When you expand the Storage Pools node, the Reporting facility displays a list of storage pools for the storage subsystem. The following information is provided for each storage pool that you select:
Note: An IBM TotalStorage DS6000/DS8000 subsystem Extent Pool is labeled as a "Storage Pool" within Data Manager reports. Please refer to the storage pool information in the online help system to view information about extent pools.
|
Field Name |
Description |
|
Detail for Storage Pool |
name of the storage pool |
|
Storage Subsystem |
storage subsystem where the storage pool resides |
|
Disk Group |
formatted disk group name (IBM ESS only) |
|
Logical Subsystem |
first two digits of the LUN number (IBM ESS only) |
|
From Array Site(s) |
name of the Array Site to which a storage pool is associated. Multiple names are separated by a ",". (IBM TotalStorage DS6000/DS8000 only) |
|
From Rank(s) |
name of the Rank to which a storage pool is associated. Multiple names are separated by a ",". (IBM TotalStorage DS6000/DS8000 only) |
|
Type(s) |
RAID level(s) of the storage pool. Multiple RAID levels are separated by a ",". (IBM TotalStorage DS6000, IBM TotalStorage DS8000, and other subsystems supporting multiple RAID levels for a storage pool) |
|
Track Format |
setup of the disk track (for example: Fixed Block, Count Key Data) (not shown for IBM FAStT, HP StorageWorks, HP XP, and Hitachi Data Systems) |
|
Status |
status of the storage pool |
|
Storage Pool Capacity |
total amount of storage space in the storage pools associated with the storage subsystem |
|
Storage Pool Free Space |
amount of storage space available to allocate LUNs in the storage pools associated with the storage subsystem |
|
Number of Disks |
number of disks the storage pool contains |
|
Number of LUNs |
number of LUNs in the storage pool |
|
Surfaced LUN Capacity |
sum of the capacity of all LUNs exposed on any (front-end) port |
|
Un-surfaced LUN Capacity |
sum of the capacity of all LUNs not exposed on any (front-end) port |
|
LUN Extent Overhead |
overhead that results from trying to allocate a LUN within an extent boundary. This extent boundary can change in time. Therefore, for each LUN that is not a multiple of a GB (or the extent boundary), this overhead will exist. This space is not useable. |
You can expand the name of a storage pool to view the disks and LUNs within that storage pool.
Expand the Disks and LUNs subnodes to view:
When you expand the Disks node, the Reporting facility displays a list of disks for the storage subsystem. You can expand the name of disk to view the LUNs associated with that disk.
Click the name of a LUN associated with a disk to view detailed information about that LUN. To learn about the windows containing information on LUNs, click any of the following links:
When you expand the LUNs node, the Reporting facility displays a list of LUNs for the storage subsystem.
Note: LUN Reporting is not available for IBM FAStT FlashCopy logical drive and repository logical drive.
Click the name of a LUN to view detailed information about that LUN. To learn about the windows containing information on LUNs, click any of the following links:
When you select the name of an IBM SAN Volume Controller cluster under the Storage Subsystem node, you can view the following information in the content pane:
|
Field Name |
Description |
|
Group |
name of the resource group to which the IBM SAN Volume Controller cluster belongs |
|
Manufacturer |
the name of the manufacturer |
|
Model |
the model number |
|
Required Memory |
the amount of memory required for the cluster |
|
Code Level |
the microcode version |
|
Number of Managed Disks |
number of disks associated with the cluster |
|
Number of Managed Disks Assigned to a Group |
the number of disks associated with the cluster that have been grouped |
|
Managed Disk Capacity |
total capacity of the disks associated with the cluster |
|
Managed Disk Free Space |
amount of storage space available on the disks associated with the cluster |
|
Managed Disk Group Capacity |
total capacity of disks associated with the cluster that have been grouped |
|
Managed Disk Group Free Space |
amount of storage space available in the disks associated with the cluster that have been grouped and can be used by a virtual disk |
|
Number of Virtual Disks |
the number of virtual disks associated with the cluster |
|
Virtual Disk Capacity |
amount of virtual disk capacity that is available for creating volume spaces |
|
Last Probe Time |
date/time when the cluster was last probed |
|
Last Probe Status |
indicates the success or failure of the last probe |
|
Probing Agent |
the name of the Data Manager agent that ran the probe job to collect the report information |
You can expand the name of a cluster and view subnodes for its managed disk groups, managed disks, and virtual disks.
When you expand the Managed Disk Group node, the Reporting facility displays a list of disk groups managed by the IBM SAN Volume Controller cluster. You can expand the name of a disk group to view its physical disks and virtual disks.
Drill down through both Managed Disks and Virtual Disks to view:
When you expand the Managed Disks node, the Reporting facility displays a list of disks managed by the IBM SAN Volume Controller cluster. You can expand the name of a disk to view the virtual disks associated with it.
Drill down through both Managed Disks and Virtual Disks to view:
When you expand the Virtual Disks node, the Reporting facility displays a list of the logical disks the cluster provides to the SAN.
Click the name of a disk to view detailed information about it. To learn about the windows containing information on virtual disks, click any of the following links:
See Asset Reporting - Overview for more information.