Exchange Granular Recovery Technology (GRT) based backups may receive a jet database error -528 or "Database was not found, or could not be accessed" when backing up to a remote Backup to Disk folder (B2D) that is located on a NAS device

Article:TECH61642

Created: 2008-01-15

Updated: 2012-04-24

Article URL http://www.symantec.com/docs/TECH61642

Article Type
Technical Solution

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Problem

Exchange Granular Recovery Technology (GRT) based backups may receive a jet database error -528 or "Database was not found, or could not be accessed" when backing up to a remote Backup to Disk folder (B2D) that is located on a NAS device.

Error

Unable to complete the operation for the selected resource using the specified options. The following error was returned when opening the Exchange Database file: '-528 The current log file is missing. '
Database was not found, or could not be accessed.

Scenario 1:

Scenario 2:

The Job Log displays an output similar to the following under the "Backup Set Detail Information":

Media Label: IMG000199

GRT backup set folder: \\10.0.0.1\Exchange\IMG000199

Database was not found, or could not be accessed.

SGMon debug output will display the following:

[4424] 11/14/08 13:33:19 Recovery FAILED - ERROR::RC = -528 - -528 The current log file is missing.

[4424] 11/14/08 13:33:20 Using EDB Provider for Browse/Backup.

[4424] 11/14/08 13:33:20 Logon: m_lpMAPISession->Logon returned 80004005

[4424] 11/14/08 13:33:20 OPEN DATABASE FAILED: -528 The current log file is missing.

[4424] 11/14/08 13:33:20 MB2_Chgdir:Logon returned e000fea9

See related documents on how to enable debugging

Solution

Workarounds

GRT based Exchange Agent backups can be directed to a non NAS B2D for its destination device.

For Exchange 2000, and 2003 only: Select the option "Enable legacy mailbox support (not recommended - use information store instead)" under Tools | Options | Job Defaults | Microsoft Exchange enables legacy mailbox backups. this enables brick level mapi based backups. The selection list will need to be modified to include the mailbox and public folder selections for the backup.

If it is necessary due to space limitations to use a NAS device for Exchange GRT backups, GRT can be disabled for the job, and a Recovery Storage Group may be used to recover items if needed. (See related Documents)

Resolution

This issue has been resolved by way of a hotfix in Backup Exec for Windows Servers version 12.0 and in Backup Exec for Windows Servers version 12.5. For more details please refer to the Related Documents section.