SBS 2003 sp1
hp ML110 G4
when I connect a USB external hard disk drive (WD my book 320) the external disk drive is visible as a disk 1 but does not show volumes in the logical disk management. It shows the correct size but it does not get a drive letter. when u try to get the properties of the volume it gives a error: "The operation was canceled due to an internal error". If u try to change the drive letter it gives the following message. "the operation did not complete. Check the event log for more information on the error. close the disk management console, then restart disk management before retrying the operation." and u will get this error every time u try this. when u try to delete the partition after a long time it will give a timeout.
In the device manager all devices are installed ok. no errors in the logbooks.
Things I tried:
when the disk is connected to a other computer it works right away and the partition is visible.
updating and downgrading drivers from usb and disk. the tape drive is connected to the same usb hub and is working properly. also tried other usb ports.
when I connect any memory stick on the same usb port it works.
when I connect a MY BOOK 500GB it gives the same error. (also a WD HDD)
when I connect a "120 gig WD HDD IDE" through a ide to usb converter it gives the same error.
deleted all traces of de western digital disk in from the memory.
how did I manage to get this strange problem.
we restored the old server (HP ML110 G3) to the new server (HP ML110 G4) with Symantec system recovery 7.
while restoring I used the option restore anyware to ensure maximal compatibility with the new server. (tried without restore anyware option but it gave some problems)
all works well. all the hardware is functionally good. also the databases, exchange server, backups all working without any problems. its just that this external backup disk used for backup to disk is not recognized. which is strange because i restored the server from the same USB hard drive.
I hope someone has any ideas or has had the same problem? because I got stuck with no more good options left.