When you perform a MS Exchange backup, you can receive the following message in the backup report:
CExBackup::backupFile:WriteFile Path=\Temporary_Directory\Backup_ID\SERVER\Microsoft
Information Store\Mailbox Store (SERVER)\File: Error Number 0×70: There is not enough
space on the disk.
The message suggests that the disk space on the MS Exchange server has ran out. OBM is then unable to copy the database files to the temporary directory.
This could be caused by a previously interrupted exchange backup, leaving the (old) database files in the temp directory. When you are creating space, make sure you check the temp directory first.
You can also simply change the temp directory to another drive or network path. In the latter it is important that the online backup scheduler has sufficient permissions. To change do the following:
- go to configure backup
- Select the affected backuptask
- click ‘options’
- change the patch of the temporary directory (see example):
In some cases the temp directory is on a FAT32 volume. When the database file exceeds 4g it will be unable to copy it to the directory. To solve you need to convert your drive or partition to NTFS:
http://support.microsoft.com/kb/q214579/
http://technet.microsoft.com/en-us/library/bb456984.aspx
