![background image](http://html1.mh-extra.com/html/quantum/dxi8500/dxi8500_user-manual_3787717465.webp)
Chapter 10: DXi8500 Utilities
Space Reclamation
Quantum DXi8500 User’s Guide
435
Space Reclamation
The
Space Reclamation
page allows you to manage space reclamation
activity on the DXi8500. You can start or stop space reclamation. You
can also monitor the progress of space reclamation activity.
During space reclamation, the DXi8500 searches the blockpool for tags
that are no longer referenced and then deletes the unneeded tags to
free up space.
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 362). 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 page 437).
•
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.
Note:
Stage 1 and 4 are not required in Normal mode because
the DXi can automatically compact reclaimable space as
needed and use it to store new deduplicated data.
•
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
tab (see
Figure 245
).
Summary of Contents for DXi8500
Page 1: ...User s Guide Quantum DXi8500 with DXi 2 2 1 Software 6 67205 04 Rev B...
Page 30: ...Preface xxx Quantum DXi8500 User s Guide...
Page 182: ...Chapter 4 DXi8500 Configuration Wizards Support Wizard 152 Quantum DXi8500 User s Guide...
Page 194: ...Chapter 5 DXi8500 Home Page Current Activity Overview 164 Quantum DXi8500 User s Guide...
Page 251: ...Chapter 6 DXi8500 Replication Reports Quantum DXi8500 User s Guide 221...
Page 252: ...Chapter 6 DXi8500 Replication Reports 222 Quantum DXi8500 User s Guide...
Page 478: ...Chapter 10 DXi8500 Utilities Reboot Shutdown 448 Quantum DXi8500 User s Guide...
Page 508: ...Appendix B Troubleshooting Common Problems and Solutions 478 Quantum DXi8500 User s Guide...
Page 516: ...Appendix C Regulatory Statements 486 Quantum DXi8500 User s Guide Declaration of Conformity...