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Dell DR Series System Administrator Guide

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Creating a Cleaner Schedule

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.
  • NOTE: Even if no Cleaner schedule is set, but the system detects that there is disk space that can be reclaimed, the Cleaner process runs. However, the Cleaner will not start until the following conditions are met: it detects that there are no active data ingests, that two minutes of system idle time have elapsed since the last data file ingest was completed, and that the Replication process is not running (the Cleaner process runs as a lower system priority operation than the Replication process).
  • NOTE: Running the Cleaner while ingesting data, reduces system performance. Ensure that you schedule the Cleaner to run when backup or replication is not in progress.
  • NOTE: The Cleaner Schedule page displays the current DR Series system time zone and current timestamp (using this format: US/Pacific, Fri Nov 2 15:15:10 2012).

To schedule Cleaner operations on your system, complete the following:

  1. Select Schedules > Cleaner Schedule . The Cleaner Schedule page is displayed.
  2. Click Schedule to create a new schedule (or click Edit Schedule to modify an existing schedule). The Set Cleaner Schedule page is displayed.
  3. Select (or modify) the Start Time and Stop Time setpoint values using the Hour and Minutes pull-down lists to create a Cleaner schedule.
    • NOTE: You must set a corresponding Stop Time for every Start Time set in each Cleaner schedule you create. The DR Series system will not support any Cleaner schedule that does not contain a Start Time/Stop Time pair of setpoints (daily or weekly).
  4. Click Set Schedule for the system to accept your Cleaner schedule (or click Cancel to display the Cleaner Schedule page).
    • NOTE: To reset all of the values in the current Cleaner schedule, click Reset in the Set Cleaner Schedule dialog. To selectively modify values in the current schedule, make your changes to the corresponding hours and minutes pull-down lists to represent the Start Time and Stop Time you wish to set, and click Set Schedule.
The current Cleaner Status is represented in 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.

Dell recommends that you do not schedule the running of any Cleaner operations during the same time period when replication or ingest operations will be running. Failure to follow this practice will affect the time required to complete the system operations and/or impact your DR Series system performance.

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