Hi good morning, I'm having issue with SBS 2011 backup, scheduled backup and manual backup fails with the following errors: Backup unsuccessful. A volume shadow copy services operation failed. Unknown error (0x800423f0) Event Backup The backup operation attempted at '2012-07-03t16:20:23:815960900Z' has failed to start, error code '2155348061'. Please review the event detail for solution, and then run the backup operation once the issue is resolved Event 19 I will be very glad to here from you guys. Thanks in advance Best regards, yours affectionate Niyi Okunola

Hi, Please see if following discussion helps in your case SBS 2011 Backup Failures - A Volume Shadow Copy Service operation failed. Unknown error (0x800423f0)... http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/thread/fd0f8dfd-d6d5-403f-b1d4-3f92e7859e26/ SBS is different than normal server operating systems hence, I would suggest you to post SBS queries in SBS forums ( if the above discussion doesn't help ) http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/threads ThanksPress any key... What the ... Where's any key ? This posting is provided "AS IS" with no warranties or guarantees and confers no rights. About Me ?

Hi, Please see if following discussion helps in your case SBS 2011 Backup Failures - A Volume Shadow Copy Service operation failed. Unknown error (0x800423f0)... http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/thread/fd0f8dfd-d6d5-403f-b1d4-3f92e7859e26/ SBS is different than normal server operating systems hence, I would suggest you to post SBS queries in SBS forums ( if the above discussion doesn't help ) http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/threads ThanksPress any key... What the ... Where's any key ? This posting is provided "AS IS" with no warranties or guarantees and confers no rights. About Me ?

In short: Reinstall the Windows Backup Feature and try again. Also check the event logs after that and post here any eventual errors.MCTS - Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. http://mariusene.wordpress.com/

Check the similar thread has same issue. http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/thread/efc91d9d-e9fb-448d-97c0-95b708f4d6ab For SBS queries, post here. http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/threads Thanks

Please have a look at the following thread: http://social.technet.microsoft.com/Forums/en/winservergen/thread/9346e24d-489b-4b9e-b349-4f176ca96781MCTS - Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. http://mariusene.wordpress.com/