No errors found in Excahnge VSS writter Writer ID: {76FE1AC4-15F7-4BCD-987E-8E1ACB462FB7},
Server Windows 2008 R2 ,Exchange 2010Sp1
Server Windows 2008 R2 Backup exec 2010 R2
ie, We have rebooted the server to get it workand then the backup job runs...