I use sharepoint 2007 and external LDAP/ form based authentication for user authentication. i ran this command as the local administrator "stsadm.exe -o backup -directory "\\server\backup" -backupmethod full" some backups worked. ... [SharePoint_Config] 100 percent complete. [WSS_Content_cmmisite5553] 100 percent complete. ... but two failed. it looks like a user name password issue. but i am not sure how to fix it. thanks for any help. [2/9/2010 5:02:00 PM]: Verbose: Starting object: UserProfileApplication. [2/9/2010 5:02:00 PM]: Progress: [UserProfileApplication] 50 percent complete. [2/9/2010 5:02:00 PM]: Verbose: Starting object: SessionStateSharedApplication. [2/9/2010 5:02:00 PM]: Verbose: Starting object: Shared Search Index. [2/9/2010 5:02:00 PM]: Progress: [Shared Search Index] 50 percent complete. [2/9/2010 5:02:21 PM]: Error: Object Shared Search Index failed in event OnBackup. For more information, see the error log located in the backup directory. InvalidOperationException: System.IO.IOException: Logon failure: unknown user name or bad password. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.Directory.InternalCreateDirectory(String fullPath, String path, DirectorySecurity dirSecurity) at Microsoft.Office.Server.Search.Administration.DirTreeNode.CopyTo(DirectoryInfo dst, FileCopier& fcopier) at Microsoft.Office.Server.Search.Administration.DirTreeNode.CopyTo(String dst, Boolean bCleanupDestination, FileCopyProgressIndicator progress) at Microsoft.Office.Server.Search.Administration.SearchBackupRestoreTimerJob.Execute(Guid targetInstanceId) [2/9/2010 5:02:21 PM]: Debug: at Microsoft.Office.Server.Search.Administration.SearchBaseBackupRestoreTimerJob.WaitTimerJobComplete(SPFarm farm, Guid id, SPRestoreInformation args, Int32 finalProgress, Boolean bWaitStartLongOperation) at Microsoft.Office.Server.Search.Administration.SearchSharedApplication.Microsoft.SharePoint.Administration.Backup.IBackupRestore.OnBackup(Object sender, SPBackupInformation args) [2/9/2010 5:02:21 PM]: Verbose: Starting object: SharedServices1_Search_DB. and [2/9/2010 5:02:00 PM]: Verbose: [SharedServices1_DB] SQL command completed at: 2/9/2010 5:02:00 PM. [2/9/2010 5:02:00 PM]: Verbose: Starting object: UserProfileApplication. [2/9/2010 5:02:00 PM]: Progress: [UserProfileApplication] 50 percent complete. [2/9/2010 5:02:00 PM]: Verbose: Starting object: SessionStateSharedApplication. [2/9/2010 5:02:00 PM]: Verbose: Starting object: Shared Search Index. [2/9/2010 5:02:00 PM]: Progress: [Shared Search Index] 50 percent complete. [2/9/2010 5:02:21 PM]: Error: Object Shared Search Index failed in event OnBackup. For more information, see the error log located in the backup directory. InvalidOperationException: System.IO.IOException: Logon failure: unknown user name or bad password. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.Directory.InternalCreateDirectory(String fullPath, String path, DirectorySecurity dirSecurity) at Microsoft.Office.Server.Search.Administration.DirTreeNode.CopyTo(DirectoryInfo dst, FileCopier& fcopier) at Microsoft.Office.Server.Search.Administration.DirTreeNode.CopyTo(String dst, Boolean bCleanupDestination, FileCopyProgressIndicator progress) at Microsoft.Office.Server.Search.Administration.SearchBackupRestoreTimerJob.Execute(Guid targetInstanceId) [2/9/2010 5:02:21 PM]: Debug: at Microsoft.Office.Server.Search.Administration.SearchBaseBackupRestoreTimerJob.WaitTimerJobComplete(SPFarm farm, Guid id, SPRestoreInformation args, Int32 finalProgress, Boolean bWaitStartLongOperation) at Microsoft.Office.Server.Search.Administration.SearchSharedApplication.Microsoft.SharePoint.Administration.Backup.IBackupRestore.OnBackup(Object sender, SPBackupInformation args) [2/9/2010 5:02:21 PM]: Verbose: Starting object: SharedServices1_Search_DB.

Hi qchenapp0,Please try the suggestions Lambert mentioned in his post.http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/01ef06b2-3567-4aa7-a025-084c86f155e2Hope it can be helpful to you.Lily Wu