Backup to Disk Storage (B2D) folders in Backup Exec 2012 go offline when Backup Exec Database Maintenance occurs.

Article:TECH189831  |  Created: 2012-05-27  |  Updated: 2013-12-24  |  Article URL
Article Type
Technical Solution



B2D folders go offline when Backup Exec Database Maintenance is completed. The Backup Exec Database Maintenance occurs at 4 AM everyday. If any jobs are using the B2D folder they may fail\recover when the B2D goes offline.


Following Alert is seen

Log Name:      Application
Source:        Backup Exec
Event ID:      58057
Backup Exec Alert: Media Error (Server: "ServerName") The disk is offline.
This is typically caused by the folder becoming inaccessible due to it being
deleted, renamed, or unshared.



  • Backup Exec 2012
  • SAN Disk (MultiPath)
  • RAID Disks using MPIO



A hotfix is now available for this issue in the current version(s) of the product(s) mentioned in this article. Refer to the Hotfix link under Related Articles at the end of this article to obtain the hotfix needed to resolve the issue.


Backup Exec 2012 Rev 1798 Hotfix 201596. Device Driver Installer DDI20121215 (December 15th, 2012) (TECH201596)



1. Change the time of the Database Maintenance to run at a time when no backup jobs are scheduled to run. This will ensure that backup jobs do not fail\recover. This time can be changed by

  • Click on Backup Exec Icon on the Ribbon.
  • Select Backup Exec Settings.
  • Click on Database Maintenance.

2. Then you can mark the storage online with one of the following methods:

  • Set the folder to Online manually in the storage tab of the User Interface.
  • Restart Backup Exec services.
  • Use the following BEMCLI command in a batch file(see attachment) to mark all disk storage back online.(this can be
    executed with windows task scheduler a few minutes after the storage goes offline.)

   powershell.exe -command "&{import-module bemcli;Get-BEDiskStorageDevice | Set-BEDiskStorageDevice -Disabled $false}"



BEMCLI_All_Disk_storage_online.bat (122 Bytes)

Supplemental Materials


CORE: B2D folders created on SAN drives (SAN with MultiPath) go offline when Backup Exec DB maintenance runs or if the Backup Exec services are restarted.

Article URL

Terms of use for this information are found in Legal Notices