e000ff19 - communications failure (SQL Server)

Hi,

i'm trying to backup several databases from another server with backup exec 2010 r3. interestingly, it works for all databases, except one.it was already running, but then out of nowhere, it stopped. the one that doesn't work is the largest one, so i thought the most likely problem is space, but after looking through the disks i assume that this should be alright. The exact error is:

e000ff19 - A communications failure has occurred with a SQL Server resource

the error windows also says:

End tag 'machine' does not match the start tag 'sql_dbcc_group'.

29: C:\Program Files\Symantec\Backup Exec\Data\BEX_AITSCORP01_01003.xml

the database is a SQL 2008 R2, SP1

the sql log file shows following error:

15:25:32.16 Backup      Error: 3041, Severity: 16, State: 1.
15:25:32.16 Backup      BACKUP failed to complete the command BACKUP DATABASE ARSystem. Check the backup application log for detailed messages.
15:25:32.16 Backup      Error: 18210, Severity: 16, State: 1.
15:25:32.16 Backup      BackupIoRequest::ReportIoError: write failure on backup device 'ARSystem_00__dd46f781_5556_4d62_a44d_26fe7461a1af_'. Operating system error 995(The I/O operation has been aborted because of either a thread exit or an application request.).
15:25:32.18 spid190     Error: 18210, Severity: 16, State: 1.
15:25:32.18 spid190     BackupVirtualDeviceFile::RequestDurableMedia: Flush failure on backup device 'ARSystem_00__dd46f781_5556_4d62_a44d_26fe7461a1af_'. Operating system error 995(The I/O operation has been aborted because of either a thread exit or an application request.).
16:52:55.48 spid182     DBCC CHECKDB (ARSystem) WITH physical_only executed by local_symantecbackup found 0 errors and repaired 0 errors. Elapsed time: 3 hours 1 minutes 10 seconds.  Internal database snapshot has split point LSN = 000049dd:00032596:0001 and first LSN = 000049dd:000322f7:000f.
16:56:02.25 Backup      Error: 3041, Severity: 16, State: 1.
16:56:02.25 Backup      BACKUP failed to complete the command BACKUP DATABASE ARSystem. Check the backup application log for detailed messages.
16:56:02.25 Backup      Error: 18210, Severity: 16, State: 1.
16:56:02.25 Backup      BackupIoRequest::ReportIoError: write failure on backup device 'ARSystem_00__a39858b2_ded5_479c_856e_73ebb4ffd67e_'. Operating system error 995(The I/O operation has been aborted because of either a thread exit or an application request.).
16:56:02.26 spid196     Error: 18210, Severity: 16, State: 1.
16:56:02.26 spid196     BackupVirtualDeviceFile::RequestDurableMedia: Flush failure on backup device 'ARSystem_00__a39858b2_ded5_479c_856e_73ebb4ffd67e_'. Operating system error 995(The I/O operation has been aborted because of either a thread exit or an application request.).

the assignment of permission should be fine, it works on the other databases. i already reassignet the sqlvdi.dll files with regsvr32. i don't think it makes a difference if i use the advanced open file option.

 

what could be the problem?

Regards, Konstantin