We have a temporary training envirnoment consisting of two identical (bar the names) 2003 domains. Second server in each domain is the handling the backup with Symantec BackupExec 2010. We are using disk-to-folder backup to an external 1TB USB-drive (Aegis Padlock 3.0). The first domain works flawlessly, but on the other one, the drive goes offline and is lost in both Disk Management and Device Manager. Looking at the disk, the green light is still on an the disk is running (humming). By unplugging and plugging the cord in again, the disk comes online instantly. The last failed backup log indicates that the disk went offline after roughly three hours.
We have tried the following and are no running out of ideas:
- Changing drive and cord
- Restarting the server
- Removing the drive several times
On the other server, there has been no problem whatsoever and they both have the same configuration and the same hardware, HP G7.