Chapter 10: Utilities
Space Reclamation
Quantum DXi6900 User’s Guide
364
l
If the DXi is in Low Space state, compaction starts and continues to run until the DXi exits Low Space
state. The reclaimed space can be used to store new deduplicated or non-deduplicated data.
Note:
The current compaction status is displayed on the
Home
).
Caution:
For correct system operation, space reclamation
must
be run at regular intervals (at least
once a week). Quantum recommends creating a schedule to automatically run space reclamation (see
Scheduling Space Reclamation on page 286
). Because space reclamation can affect system
performance, avoid running space reclamation during known backup periods.
The space reclamation process can include up to four stages (see
Space Reclamation Status on the next
).
New or Normal Mode
To increase performance, when space reclamation is initiated on the
Space
Reclamation
page or as a scheduled event, only Stage 2 (Calculating
Deletion Candidates) and Stage 3 (Deleting New Candidates) are run.
Low Space or Legacy Mode
When disk capacity is low, space reclamation is automatically started to
free up disk space. In this case, all four stages of space reclamation are run.
To access the
Space Reclamation
page, click the
Utilities
menu, and then click the
Space Reclamation
).
Figure 236:
Space Reclamation Page
The
Space Reclamation
page displays the following information about the current or most recent space
reclamation activity:
Status
The status of space reclamation (see
Space Reclamation Status on the next page
).
Stage Progress
The progress of the current space reclamation stage.
Total Progress
The overall progress of space reclamation activity.
Start Time
The time space reclamation started.
