Windows 2003 Netbackup 6.5.2A Not Using all Drives in Library

Posted on 2009-02-11
Last Modified: 2012-05-06
I'm running Netbackup 6.5.2A on a Windows 2003 Enterprise server. I have my storage unit for my library is set to use all four drives and my backup job is set to use this storage unit as well. I made sure multipling is set to 4 for my backup policy as well. Yet when the job runs it only uses one drive at a time and the server it is backing up has 5 physical drives that get backed up..

please help
Question by:compdigit44
    LVL 23

    Expert Comment


    if multiplexing is what you have set it will backup to a single drive with multiple threads of each item marked for backup to the same tape.  As in your case you have 5 physical drives which means it simultaneously backups the 4 drives selected for backup to a single tape.

    If netbackup has the feature called multistreaming then you can select that option as that will write data simultaneously to multiple drives

    LVL 19

    Author Comment

    Where is the multistreaming option located?
    LVL 23

    Accepted Solution


    check this document on how to enable multistreaming/multiplexing

    for a understanding of multiplexing and multistreaming


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