Server 2003 hangs when attaching USB drive

We have a server running server 2003 and have set up Acronis to do image backups.  Originally we tried using an ESATA card with the Vantec dual docks and experienced lock-ups when changing the drives.  We make sure to eject & power off before ejecting.  When the new drive is swapped in and powered up the system becomes increasingly bogged down and ultimately unresponsive.  Even in USB mode the drive dock will work once or twice after reboots and then the lockups will happen.
Need to stop this from happening!

-James
tech1984Asked:
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tech1984Author Commented:
Hi ,

Noxcho: I will look into that.

Microsoft helped resolve the issue - it was a conflict between Symantec and Acronis backup.  The Symantec had been disabled but had turned itself back on.  Uninstalling Backup Exec fixed the issue.

James
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noxchoGlobal Support CoordinatorCommented:
When it happens start the Task Manager and see which process is eating your RAM and processor.
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mdquisarahmadCommented:
May be USB disk have virus. Check whether your antivirus is updated ?
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tech1984Author Commented:
Hi,

noxcho: the couple times I have caught the hang with task manager it shows nothing out of the ordinary.  No big CPU or memory hogs.  One thing did pop up before the last crash, a notification said it was installing a device driver for the Seagate 1 TB drive right as it hung hard.

mdquisarahmad: we are running an up-to-date ESET NOD32 on the server.  The NOD console shows active protection.  One of the other admins did turn off "scanning attached drives" but this did not help.

Thanks, James
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mdquisarahmadCommented:
I think your have Seagate USB disk and when you attached it's looking driver.  I would suggest before attach the USB drive, Update the USB disk driver and then connect. Hope it would work.  
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noxchoGlobal Support CoordinatorCommented:
Is this drive completely empty? If not then empty it - format it and connect it. Does it behave the same?
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tech1984Author Commented:
mdquisarahmad: I will give this a try.
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shahzoorCommented:
Well i dont think acronis or any other software will tolerate swapping storage medium during backup process.
The easiest way is to
1 = Find Exact size of your USB
2 = Define the backup options and select advanced
3 = Select Backup splitting
4 = Select a maximum size less than the size of your USB for example for 8gb define backup splitting as 7.5gb and run the backup

You can directly do it in the usb or define it to save the backup in the existing harddisk and later transfer the splits to your USB
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tech1984Author Commented:
Tried adding a totally new USB drive and the system went down.

Took off the old drive and will try to format & use the new drive.

shahzoor: drives were unmounted clean, so they were idle.  Also these are 1 TB drives so space is not an issue (at the moment).

Noticed the backup drives were plugged into a different outlet so I am having an electrician come in tomorrow to look at the power.  May be a ground loop.
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shahzoorCommented:
its not about safely unmounting the usb, its about splits, please setup the splitting size of backup to do it, else its not reliabe
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tech1984Author Commented:
Hi,

noxcho: same thing with a blank drive.  The USB icon in the notification tray popped up and it locked hard.

There may be power issues.
I moved the disk drive to the same isolated ground outlet and will see tonite if this helps.

mdquisarahmad: the driver loaded just fine after a reboot.  Not sure if this is driver-related, will have to see after a drive swap.

James
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noxchoGlobal Support CoordinatorCommented:
If you have powered USB hub at hand try to connect the drive via it.
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tech1984Author Commented:
Hi,

I don't have a powered hub but what I have seen recently is that the system hangs on driver installation only when changing drives.

That is, when the system is rebooted, the drive is detected just fine.  However, it never gets a drive letter and we always need to go into the Disk Manager and assign the correct drive letter each time it is mounted.  All the installed drivers are the stock Microsoft USB drivers and are the latest version.  When the drive is changed, that's when the trouble starts.

At this point I am going to have to engage Microsoft support.  The problem seems to be somewhere in the low-level driver installation.
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noxchoGlobal Support CoordinatorCommented:
If the drive does not get the drive letter then automount is disabled in your system.
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tech1984Author Commented:
Resolved by Microsoft
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noxchoGlobal Support CoordinatorCommented:
Thanks for feedback
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