After an upgrade to NetBackup 7.5 and higher, if an MS-SQL server database backup fails, the dbbackex.exe executable freezes. The next backup then fails with a VDI timeout error.
Due to a failure to correctly process a returned error when running a SQL backup, if the backup fails, dbbackex remains in memory instead of terminating, causing subsequent backups to fail with VDI timeout errors.
ETA of Fix:
The formal resolution for this issue (ETrack 2813378) is included in the following patch release(s):
NetBackup 7.5 Release Update 5 (18.104.22.168)
NetBackup Appliance 2.5.2
Please visit these links for download and README information:
NetBackup Enterprise Server: http://www.symantec.com/business/support/index?page=landing&key=15143
NetBackup Appliance: http://www.symantec.com/business/support/index?page=landing&key=58991
Any version of Microsoft SQL Server + NetBackup 7.5.0.x (through 22.214.171.124).