Performing scheduled disk space reclamation operations are recommended as a method for recovering disk space from system containers in which files were deleted as a result of deduplication. The best method is to schedule a time when you can run the Cleaner on your DR Series system with no other planned processes running. Alternately, another method lets the Cleaner process on the DR Series system run whenever it determines that there are no active data ingests.
1 Select Schedules > Cleaner Schedule.
2 Click Schedule to create a schedule, or click Edit Schedule to modify an existing schedule.
3 Select or modify the Start Time and Stop Time setpoint values using the Hour and Minutes drop-down lists to create a Cleaner schedule.
4 Click Set Schedule for the system to accept your Cleaner schedule, or click Cancel to display the Cleaner Schedule page.The current Cleaner Status is represented on the Dashboard page in the System Information pane as one of the three following states:
• Pending: Displayed when there is any scheduled window set and the current time is outside the scheduled window for the Cleaner operation.
• Running: Displayed when the Cleaner operation is running during a scheduled window.
• Idle: Displayed only if there is no Cleaner operation running during a scheduled window.
To display additional Cleaner statistics, you can use the DR Series system CLI stats --cleaner command to show Cleaner statistics.For more information about DR Series system CLI commands, see the Quest DR Series System Command Line Reference Guide.
The Dashboard page contains system status indicators for the current state of the DR Series system (System State), current hardware state (HW State), current number of system alerts (Number of Alerts), and current number of system events (Number of Events). After backup jobs have run, the DR Series tracks Capacity, Storage Savings, and Throughput on the DR Series dashboard. This information is valuable in understanding the benefits the DR Series.
• Capacity: Used space and free space available in percentage and total (in gibibytes or tebibytes).
• Storage Savings: Total savings in percentage based on time (in minutes), which can be displayed in 1h (one hour — the default), 1d (one day), 5d (five days), 1m (one month), or 1y (one year) durations.
• Throughput: For reads and writes in volume based on time (in minutes), which can be displayed in 1h (one hour — the default), 1d (one day), 5d (five days), 1m (one month), or 1y (one year) durations.
NOTE: Deduplication ratios increase over time, it is not uncommon to see a 2 to 4x reduction (25 to 50% total savings) on the initial backup. As additional full backup jobs complete, the ratios increase. As mentioned previously, backup jobs with 12-week retention average a 15x ratio usually.
For more information on monitoring, see the “Monitoring the DR Series System” topic in the Quest DR Series System Administrator Guide.
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