Storage Systems Historical Capacity report

Shows the usage of space on storage systems over a specified period. Use the report to analyze changes in your storage system requirements.

Charts

The chart shows the following space statistics for the storage systems:
  • The capacity of the pools on the storage systems
  • The used space in the pools on the storage systems
  • The available space in the pools on the storage systems
  • The capacity of the volumes on the storage systems
  • The available space on the managed disks on the storage systems
  • The capacity of the managed disks on the storage systems

Report output

The following information is included in reports for storage systems:

Storage System Name
A user-defined name of the storage system. If a name was not defined, IBM Spectrum® Control shows the name that was defined when the storage system was added for monitoring.
Storage System Configuration
Shows whether a storage system is configured as back-end storage or configured to virtualize back-end storage. If this value is Storage System, the storage system is configured as back-end storage. If this value is Storage Virtualizer, the storage system is configured to virtualize back-end storage.
Date
The date that the data was collected for the report.
Storage System Pool Capacity (GiB)
The amount of storage space in pools that are on the storage system. For an XIV® or IBM Storage Accelerate™, this value represents the physical capacity of the pool, not the virtual capacity. For other storage systems, this value might also include overhead space if the pool is unformatted.
Storage System Used Pool Space (GiB)
The amount of space that is in use in all pools on a storage system.
Storage System Available Pool Space (GiB)
The amount of unused space in pools that are on the storage system.
Storage System Volume Capacity (GiB)
The amount of space on all volumes on the storage system.
Storage System Number of Volumes
The number of volumes on a resource.
Storage System Number of Disks
The number of physical disks on the storage system. For a resource that is running IBM Storage Virtualize™ and is configured as a back-end device, the value is the number of managed disks on the resource.
Storage System Overhead (GiB)
The amount of space that is used for system management. The amount of space also includes space that is reserved for redundancy.
Storage System Unallocated Disk Space (GiB)
The amount of disk space that can be added to a pool.
Storage System Volume Capacity Assigned to MDisks (GiB)
The amount of space that is on volumes that are assigned to a storage virtualizer to use as managed disks.
Storage System Disk Capacity (GiB)
The amount of storage space on physical disks in a storage system, excluding spare disks. This value is not shown for resources that are running IBM Storage Virtualize and are configured as back-end storage.
Storage System Total Disk Capacity (GiB)
The amount of space on physical disks on a storage system, including spare disks.
Storage System Assigned Volume Space (GiB)
The amount of space in the pool that is on volumes that are assigned to a server or storage virtualizer.
Storage System Volume Capacity for z/OS® (GiB)
The amount of space on all volumes on the storage system that the z/OS operating system can use.
Storage System Real Available Pool Space (GiB)
The amount of unused space in pools that have an associated soft size on an XIV or IBM Storage Accelerate. The soft size of a pool is the virtual size of a thin-provisioned pool.
Storage System Real Configured Pool Space (GiB)
The amount of storage space that is in pools that have an associated soft size on an XIV or IBM Storage Accelerate. The soft size of a pool is the virtual size of a thin-provisioned pool.
Storage System MDisk Capacity (GiB)
The amount of storage space on the managed disk.
Storage System MDisk Available Space (GiB)
The amount of storage space that is available on a managed disk. This value is only available for resources that are running IBM Storage Virtualize and are configured as back-end storage.