Disk Usage

The Disk Usage overview on the Home page displays the following information about disk usage as an amount and as a percentage of the total capacity in the system:

Disk Usage Description

Disk Capacity

The total usable disk capacity of the DXi4800.
Available Disk Space

The disk space available for data storage (free space).

Additional Information

  • When disk space is low, click the Quick Warning icon [!] next to the space meter to see more information.
  • When disk space is low, target replication to the system is paused. See Replication Service.
  • Space reclamation is automatically started to free up disk space. See Space Reclamation.
  • For optimal system performance, Quantum recommends keeping the amount of Available Disk Space (free space) at 20% or more.

Click Show More to display additional information:

Show More Information Description
Free Space The disk space that can be used for new deduplicated or non-deduplicated data.
Reclaimable Space The disk space that is occupied by outdated deduplicated data and which will be automatically reused if additional space for new deduplicated data is needed.
Used Disk Space The disk space that already holds data, including deduplicated data, system metadata, and data not intended for deduplication.
Deduplicated Data The amount of data that has been deduplicated.
Data Not Intended for Deduplication The amount of data on DXi that do not have deduplication enabled.
System Metadata The amount of disk space used for internal operations of the DXi , including system configuration files as well as temporary files created during replication, space reclamation, and healthchecks.