InfoScale™ Operations Manager 9.0 User's Guide

To implement deduplication for a file system

1. In the Management Server console, go to the Server perspective and expand Manage in the left pane.
2. Expand the Organization or Uncategorized Hosts to locate the host.
3. Expand the host and select Volumes.
4. Right-click the volume on which the file system is mounted and click Properties.
5. Click the Deduplication tab. The tab includes the following:

   Configure	Lets you configure the file system for deduplication. Configuration sets up a small database. The Configure Deduplication window includes several customizable parameters and also lets you set up a schedule for running deduplication.
   Unconfigure	Lets you remove an existing configuration. If you want to disable deduplication temporarily but leave the configuration in place, you do so on the Configure Deduplication window. See Disabling or removing deduplication for a file system.
   Scan Now	Lets you start the deduplication operation immediately if there is an existing configuration.
   Space Saved History	Tracks the results of deduplication. To change the time period, select from the Duration drop-down list and click Apply.

6. Click Configure.
7. In the Configure Deduplication window, you can customize the following options:

   Enabled

   If you clear the checkbox, the deduplication operation is disabled. If you want to enable it later, return to this window.

   Data Usage

   Lets you optimize the database size according to the type of data and the amount of space available for the database. The smaller the chunk size selected for data, the more space is required for the database. Once configuration is complete, this parameter cannot be changed except by unconfiguring the database and reconfiguring it. For most data, Arctera recommends the default, Other (16k). Options include VMDK files (4k) and Home directories (8k).

8. To set up a schedule for deduplication, select from the following:

   Commit on run number	The deduplication process scans and fingerprints the data before eliminating duplicates. You can schedule the deduplication process to eliminate the duplicates each time it runs (the default value of 1) or every specified number of times. During times that deduplication does not occur, the deduplication run only updates the fingerprints in the database.
   Weekday Schedule	You can select one day of the week or schedule a run every day. Arctera recommends that you schedule deduplication when the system activity is low so as not to interfere with the regular system workload.
   Hours	Schedule the hour to begin a deduplication run.

9. Click Finish. The deduplication configuration sets up the deduplication database. When a message shows the configuration is complete, click Close.
10. If you want to run deduplication now, rather than wait for a scheduled time, click Scan Now. Click Yes to confirm that you want to begin the deduplication. Once it is begun, you can close the window. The operation runs in the background.