External drive letters changing
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I presume that the drive letters are changing because the volume name is changing. The system sees a new drive, so you get a new letter.
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@CCWTech said in External drive letters changing:
I have a server with only 2 USB ports. OS is Windows Server 2016 STD.
Since I need more than that to plug in external usb drives I purchased a USB powered hub.
It's been working fine for a long time, however just recently after a reboot the drive letters are changing from what they are manually assigned in Disk Management and even the name of the volume is changing.
I have read about clearing the drive attributes in diskpart and also the possibility of the server now detecting the USB hub as a new device each time.
Has anyone worked on this issue before and what did you do to resolve it?
Are you properly ejecting the USB drives before taking them out? I think sometimes they don't fully clear and then you have a letter conflict. I'm not 100% sure on this though..
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@Reid-Cooper said in External drive letters changing:
I presume that the drive letters are changing because the volume name is changing. The system sees a new drive, so you get a new letter.
Not sure why the volume name changes though.
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@dave247 said in External drive letters changing:
@CCWTech said in External drive letters changing:
I have a server with only 2 USB ports. OS is Windows Server 2016 STD.
Since I need more than that to plug in external usb drives I purchased a USB powered hub.
It's been working fine for a long time, however just recently after a reboot the drive letters are changing from what they are manually assigned in Disk Management and even the name of the volume is changing.
I have read about clearing the drive attributes in diskpart and also the possibility of the server now detecting the USB hub as a new device each time.
Has anyone worked on this issue before and what did you do to resolve it?
Are you properly ejecting the USB drives before taking them out? I think sometimes they don't fully clear and then you have a letter conflict. I'm not 100% sure on this though..
Not removing them at all. Just after a reboot.
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@CCWTech said in External drive letters changing:
@dave247 said in External drive letters changing:
@CCWTech said in External drive letters changing:
I have a server with only 2 USB ports. OS is Windows Server 2016 STD.
Since I need more than that to plug in external usb drives I purchased a USB powered hub.
It's been working fine for a long time, however just recently after a reboot the drive letters are changing from what they are manually assigned in Disk Management and even the name of the volume is changing.
I have read about clearing the drive attributes in diskpart and also the possibility of the server now detecting the USB hub as a new device each time.
Has anyone worked on this issue before and what did you do to resolve it?
Are you properly ejecting the USB drives before taking them out? I think sometimes they don't fully clear and then you have a letter conflict. I'm not 100% sure on this though..
Not removing them at all. Just after a reboot.
Oh, that is much worse.
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Rower85 said to do this...
Open Run and type "Diskpart"
type "LIST VOLUME"
note witch volume number that you want to autoassign on bootCreate a textfile on C:\ named: diskpart.txt
Put this in the textfile:
select volume "drive number"
assign letter="drive letter to assign"
(in the " " brackets, input your stuff, also you do not need the "")Open Run and type notepad
Put this in:
diskpart /s c:/diskpart.txt
click File > Save As...
locate C:\ and change File Name to "diskpart.bat" then change Save as type: to All Files and press SaveNow go to Task Scheduler in the Admin section on the Control panel.
Make a new folder in the "Windows" sub folder named "Diskpart"
rightclick the "Diskpart" folder
click "Create Basic Task..."
name it to "Diskpart" and click "Next >"
select "When the computer starts" click "Next >"
select "Start a program" click "Next >"
click "Browse..."
select the "Diskpart.bat" file you saved on C:, click "Next >"
select "Open the Properties dialog for this task when I click Finish" click "Finish"
Properties should come up, now select "Run with highest privileges"
click "OK" -
@Reid-Cooper said in External drive letters changing:
Rower85 said to do this...
Open Run and type "Diskpart"
type "LIST VOLUME"
note witch volume number that you want to autoassign on bootCreate a textfile on C:\ named: diskpart.txt
Put this in the textfile:
select volume "drive number"
assign letter="drive letter to assign"
(in the " " brackets, input your stuff, also you do not need the "")Open Run and type notepad
Put this in:
diskpart /s c:/diskpart.txt
click File > Save As...
locate C:\ and change File Name to "diskpart.bat" then change Save as type: to All Files and press SaveNow go to Task Scheduler in the Admin section on the Control panel.
Make a new folder in the "Windows" sub folder named "Diskpart"
rightclick the "Diskpart" folder
click "Create Basic Task..."
name it to "Diskpart" and click "Next >"
select "When the computer starts" click "Next >"
select "Start a program" click "Next >"
click "Browse..."
select the "Diskpart.bat" file you saved on C:, click "Next >"
select "Open the Properties dialog for this task when I click Finish" click "Finish"
Properties should come up, now select "Run with highest privileges"
click "OK"Problem is that the volume names are changing as well.
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@CCWTech Maybe it is time for eSATA
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I dealt with this while I was still carrying disks home weekly for our backup processes.
The issue for us was just a simple change drive letter (for both drives) since they automatically mounted and we're assigned a litter that didn't work with our backup solution.
While a manual process, it worked.
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@CCWTech As an alternative, you can try this tool: https://www.uwe-sieber.de/usbdlm_e.html
