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Synchronizing Data Using Data Carrier SynchronizationLocate this document in the navigation structure

Use

You must use data carrier synchronization to ensure that mobile clients can synchronize data with the DOE by using storage mediums, such as a floppy disk, CD, DVD, or USB drive. Based on your requirements, you can use the following options:

  • Download

    Allows you to download the files to a storage medium. After you download the files to the required storage medium, you can send this storage medium to the required device. In this case, the files contain data that the device must receive from the DOE as part of the synchronization process.

  • Upload

    Allows you to upload the files from a storage medium to the DOE and trigger synchronization. In this case, the files contain data that the DOE must receive from the mobile client as part of the synchronization process.

  • Upload and download

    Allows you to:

    • Upload the files from a storage medium to the DOE and trigger synchronization.

    • Download the files to a storage medium. After you download the files to the required storage medium, you can send this storage medium to the required device.

      Note

      If you want to synchronize data for a migrated application that uses two-way SyncBOs, for example MAM, then the device user must first store the data on the storage medium and send it to the administrator. You must then perform the upload and download simultaneously by using the upload and download option.

Procedure

Log on to the SAP NetWeaver AS and start transaction SDOE_DISC_SYNC .

Uploading Files from the Storage Medium to the DOE

  1. In the Directory field, enter the path of the folder where the files are stored.

    Recommendation

    We recommend that you copy the files from the storage media to a folder in your local file system before you start to upload the files. This ensures that you can upload files quickly.

  2. Choose Upload .

The devices that are uploaded as part of the upload operation are displayed under the Uploaded Device Details along with their processing status. You can choose Refresh to refresh the processing status. You can also delete a device if required.

Downloading Files from the DOE to a Storage Medium

  1. Under Download Devices , select the devices for which you want to start the download of data. To specify the devices for which you want to download files, choose Add Devices .

  2. In the Directory field, enter the path of the folder where you want to store the files.

    Recommendation

    We recommend that you copy the files to a folder in your local file system instead of directly copying the files to the storage media. This is because you cannot directly write data on some storage media types such as a CD or DVD.

  3. Choose Download .

  4. In the Media Size field, enter the type of storage media you want to use.

    If you select the User Defined option as the media type, then you must also specify the size of that media.

  5. To encrypt the data, choose Encrypt .

  6. To sign the data digitally, choose Sign .

Note

You need to provide the implementation for BADI_DOE_DISC_SYNC. The Encrypt and Sign methods of the BADI implementation will be called during download of the data. Additionally, the corresponding algorithms for decrypting & un-signing must be available on the client side

Performing the Upload and Download of Files Simultaneously

  1. In the Directory field, enter the path of the folder where the files are stored.

    Recommendation

    We recommend that you copy the files from the storage media to a folder in your local file system before you start to upload the files. This ensures that you can upload files quickly. After the upload is complete, the files that must be downloaded are downloaded to a new folder in the same location where the upload files were originally stored. This new folder is created only when the files are downloaded.

  2. Choose Upload & Download .

  3. To encrypt the data, choose Encrypt .

  4. To sign the data digitally, choose Sign .

  5. To allow partial copy of data, select partial copy allowed

    If you select this option, DOE enables you to copy the downloaded files anytime irrespective of the progress of the download operation. When the client device reads these partial data carriers, it sends the confirmation messages only for the messages that it received from the DOE.

  6. Choose Execute .