The System Capacity view for storage displays the system level storage capacity for traditional storage systems, APEX Data Storage Services, VxRail hyperconverged systems, and PowerProtect DD systems. For Connectrix and PowerSwitch, it displays port capacity.
The information for traditional storage systems includes:
- Usable – Total disk capacity, which is the sum of Used and Free space
- Used – Disk capacity that is allocated to an object, such as a LUN, Volume, or file system
- Free – Disk capacity provisioned to a storage pool but not yet allocated to an object, such as a LUN, Volume, or file system
- Provisioned – Total capacity visible to hosts attached to this system
- Overall Efficiency – System-level storage efficiency ratio, based on the following combined savings ratios:
- Thin – Ratio of thin provisioned objects on the system (Unity XT family, PowerStore, SC Series, VMAX/PowerMax, PowerVault ME4)
- Snapshots – Ratio of snapshots on the system (Unity XT family, PowerStore, SC Series, VMAX/PowerMax, PowerVault ME4)
- Thin and Copy – Ratio of thin provisioned objects (XtremIO volumes, including snapshots)
- Data Reduction – Ratio of data that has data reduction applied, using compression or deduplication. (Not supported for PowerVault ME4)
- Deduplication – Ratio gained by savings from deduplication (PowerScale/Isilon only)
The information for APEX Data Storage Services includes:
- Subscribed Usable – Total of usable base capacity
- Base Used – Amount of host written data consuming base capacity
- Base Available – Remaining available space from the base capacity
- Subscriptions – Number of subscriptions for a given cluster
- On-Demand Used – Amount of used capacity above the base capacity
Note: For Unity XT family systems running version 4.3 and higher and SC Series running version 7.3 and higher, Data Reduction includes Compression or Deduplication.
For switches, the user can filter the view to show All ports, FC ports, or Ethernet ports. For each selection, the displayed information includes:
- Total Ports – Total number of ports (All ports, FC ports, or Ethernet ports depending on previous selection)
- Online – Number of ports in an online state
- Offline – Number of ports in an offline state
- Faulty – Number of ports with one or more faults
For VxRail systems, CloudIQ displays Usable and a breakdown of Used and Free capacity.
The Data Protection view summarizes the capacity for DD systems. Total storage is broken down to Used and Available. Savings due to Reduction and Compression is also provided for each system.