Previous Topic: Create and Apply files from the Local DriveNext Topic: Turn Off Verification

Best Practices Guide › DMM Best Practices › Tips to Optimize Time and Resources › Turn Off Compression

Turn Off Compression

The compression setting determines how CA DMM compresses the DNA files created. CA DMM uses standard PKZip file compression technology to compress the data in a DNA file. Not all files compress with equal success. Compressing an already compressed file takes more time and can actually be larger after the file is compressed.

The compression options are:

None

Select this option to prevent compressing a DNA file. This is also the best selection if you are performing a real-time migration and your network environment is capable of handling the increased traffic.

Quickest

Select this option to compress a DNA file in the quickest way without checking to ensure it will be the smallest size possible.

Smallest

Select this option to ensure the smallest possible DNA file size.

Note: Compressing and decompressing information takes time. If you have enough space on your hard drive, performance is optimized if you turn compression off before creating your DNA file.

If you are using the CA DMM user interface, follow these steps:

  1. Click Options, Settings.

    The DMM Settings dialog appears.

  2. Select None in the Compression group box, and click OK.

    The migrations you perform with this instance of CA DMM use the compression setting you defined.

If you are using an options file, follow these steps:

  1. Open the DMM Options Editor from the Start menu.

    DMM Options Editor opens.

  2. Click File, Open or click the File Open toolbar button. Browse to the folder where CA DMM is installed and select the DDNAOptions.dox file.

    Note: If you have not run DesktopDNA.exe, click File, New to create the file.

  3. Click General in the left pane of the DMM Options Editor.

    All the General options appear in the right pane of the DMM Options Editor.

  4. Locate the option: Compression.

    This option determines what compression level is used when creating a DNA file. The valid values are None, Quickest, and Smallest. CA DMM defaults to Quickest.

  5. Change the setting to None.
  6. Save the DDNAOptions.dox file.

    The compression setting is set to None.