I have a 2003 SBS server and have been running Backup Exec on it for years. The backup media I have used is a set of USB Maxtor drives. I have a set of 5, one for each day of the week. I was using Panda anti-virus on the server but was unhappy with it. Last week I moved to Vipre anti-virus. I found out that I did not have all the scanning policies set properly for an SBS server and have since corrected that. However before I fixed that my backup changed from taking 6 hours to complete to 12 hours to complete. I hope my modifications to the policies have fixed that. But there was one unexpected consequence. My server is unable to read any data on any of the Maxtor drives.
When I use Windows Explorer to browse it does not see any of my Maxtor drives. When I go to Computer Management and Disk Management the drive is not seen. When I go to Device Manager a USB Mass Storage Device is seen but device status says "This device cannot start (Code 10)." I have gone to Device manager and uninstalled the USB Mass Storage Device and reinstalled it, but it comes up the same way. I have uninstalled all USB devices and then had the machine search for devices. It has reinstalled all devices properly except the USB Mass Storage Device. During the automatic installation it even identified the device as a OneTouch III device. I can take the disk to an XP machine and I can read it. I have changed the drive letter from F: that I was using for backup to I: but the SBS Server still cannot read the disk. I took a different USB disk which I had used before as Drive G: and it was seen. I changed the drive letter from Drive G: to Drive F: and the SBS saw it and backed up to it. I purchased another USB drive and the SBS immediately found it. I configured it for Drive F: and was successful in backing up to it. I have found that even though I only changed 2 Maxtor drives to Drive I: all subsequent views of any of the Maxtor drives showed them as Drive I: on the XP machine. It is almost as if those drives have something to identify them as Maxtor drives but something happened to the SBS which will not permit the SBS to read the drives anymore. This is true even after I performed a full reformat of one of the Maxtor drives.
One suggestion I had found was a registry problem so I have run Eusing Free Registry Cleaner on the SBS but still have the problem. I found another comment about a registry entry for HKLM\System\CurrentControlSet\Services\USB should have the key DisableSelectiveSuspend with a value of 1, and that is the value I have. I have verified that the proper driver is installed, even to the point of copying the driver from the XP machine to the SBS so I would have the same driver on both. Of course the server has been rebooted several times but I still have this problem.
I need to either get the Maxtor drives so they are visible to the server or I need to replace them with a different drive. I went to the registry editor and found several entries referencing Maxtor. I am wondering if I should change or even delete some or all of those entries. I do not know what I would change them to so I would probably end up deleting them. Has anyone ever seen something like this before? Any help would be appreciated.