Offline Tape Drives appear in Backup Exec 2012 User Interface after create several backup job definitions for multiple remote servers.

Article:TECH186734  |  Created: 2012-04-18  |  Updated: 2012-10-24  |  Article URL
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Article Type
Technical Solution


On the Storage tab, several offline tape devices may appear after creating multiple backup job definitions for multiple remote servers.


Backup Exec User Interface Error: Tape drive XXXX (No Media) Offline

Example Adamm.log Error: Discover: ndmp_save_device_info max paths (1792) exceeded



Excessive deduplication device paths from several Remote Agent for Windows Servers configured with having direct access to the Backup Exec Deduplication Disk Storage Device.



Reduce the total number of OST devices below 2048 and less than 255 per Remote Agent for Deduplication.
Refer to for more information.

Symantec Corporation has acknowledged that the above-mentioned issue is present in the current version(s) of the product(s) mentioned at the end of this article. Symantec Corporation is committed to product quality and satisfied customers.

There are currently no plans to address this issue by way of a patch or hotfix in the current or previous versions of the software at the present time. This issue may be resolved in a future major revision of the software at a later time. However, this particular issue is not currently scheduled for any release.  If you feel this issue has a direct business impact for you and your continued use of the product, please contact your Symantec Sales representative or the Symantec Sales group to discuss these concerns.  For information on how to contact Symantec Sales, please see
Please be sure to refer back to this document periodically as any changes to the status of the issue will be reflected here.

Supplemental Materials

              PDDE:UI: Offline Tape Drives appear in BE 2012 UI when the max number of concurrent OST device paths is exceeded.



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