I'm running build 826, saving my backup to a RAID5 array consisting of 4x 250GB Maxtor drives on a 3ware 7506-4LP controller. The RAID5 array is healthy, no problems when media scan is ran. Using Iometer I find that the array achieves ~58MB/s write performance using 64Kb/100%Sequential/100%Write settings per the 3ware KB article 11196. I've yet to be able to create a successful full backup with this setup. Previously I was able to do so with the same drives configured in software RAID5, but I do not have the Iometer results for that setup. The backups fail for possible bad media. Is there a timeout setting or minimum write spec that TI requires? Update: I ran the backup manually (Disk Image/Create Image) and it completed successfully. The attempts above were using the scheduled task function manually. Previously when it failed, I had edited an old scheduled task for the new path name and then tried to execute it. Another significant difference is that the manual process took 6 hours while the scheduled task process was projecting 1+ days.