Symptoms

Unable to backup a file.

Cause

File input/output (FILE IO) failure occurred for one of the files included in the backup.

Resolution

There was a failure in attempting to backup the file data for a particular file. This file will be included in the next scheduled backup and should be backed up at that time. You can retry the backup operation using Backup Now to see if the error recurs. If the error recurs, check the list of files included in the backup policy and verify that the files included are correctly located and accessible.

Related Topics

Windows Azure Online Backup Errors and Events List