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How to Ensure that Arcserve Backup Spans Media in a Single Drive Autoloader

When Arcserve Backup backs up data to a single drive autoloader, and detects there is no blank media at spanning, Arcserve Backup pauses the job at spanning to let you insert blank tapes into the drive. This behavior is designed to help ensure that backup data spans media properly.

When Arcserve Backup spans media and detects no blank media in a single drive autoloader, the events that follow occur:

  1. Arcserve Backup pauses the job and prompts you to insert blank media into the autoloader.

    Note: If there are no empty slots, you can replace the older media with blank media. However, you must not replace or remove the media from the recently spanned slots. While spanning tapes, Arcserve Backup locks the affected slots during the inventory process. As a result, removing or replacing the spanning tapes prevents Arcserve Backup from updating the slot information properly. If you insert media that is not blank, you may inadvertently erase the data from the media using Device Manager.

  2. After you close the door to the autoloader, Arcserve Backup inventories all media in the slots.

    If the inventory process does not start automatically, you can inventory the media manually using Device Manager.

    Note: You must wait for the inventory process to finish, which can take several minutes to complete.

    After the inventory process is complete, the backup job resumes using the blank media, after you click OK on the message box that prompted you to replace the media.

To ensure that Arcserve Backup spans media in a single drive autoloader

  1. Open the Device Manager and browse to the autoloader.

    Right-click the device and select Library Properties from the pop-up menu.

    The Library Properties dialog opens.

  2. Click the General tab.

    Clear the Set unknown bar code media to not inventoried during initialization check box.

    Click OK.

    Arcserve Backup inventories the blank media automatically when spanning is required.

Important! If you do not perform these steps, you must inventory the media manually using Device Manager.