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Add Solution

Virtual machine VHD file on USB2

Source: microsoft.public.virtualpc
Sent: 08/17/2009
From: Bo Berglund <(email address - cut out)>
Message:

I have been storing my VHD and VMC files on USB2 connected hard drives
(2.5" such as WD Passport). According to discussions here this should
actually speed up performance and it makes the guests portable too.

But now I have stumbled across an issue that maybe someone here has
investigated:
Is there a speed penalty if the USB disk is attached not directly to
my WinXP computer USB connector but instead to a powered USB2 hub
attached to one of the USB2 posrt on the PC?
I have too many gadgets now and I want to clan up my desk by using a
7-way (D-Link) USB2 hub to handle all of my guests (only one running
at a time though).

I realized that this introduces one extra layer of USB and maybe this
will slow down the guest?

Anyone with info on this?

--

Bo Berglund (Sweden)

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Related Messages

Re: Virtual machine VHD file on USB2

Sent: 08/17/2009
From: "Colin Barnhorst" <(email address - cut out)>
Message:

"Bo Berglund" <(email address - cut out)> wrote in message
news:(email address - cut out)...

I use hubs on a couple of computers and have no issues using virtual
machines on drives attached that way. It is a very convenient way to use
vms on laptops.

Show quoted text

>I have been storing my VHD and VMC files on USB2 connected hard drives
> (2.5" such as WD Passport). According to discussions here this should
> actually speed up performance and it makes the guests portable too.
>
> But now I have stumbled across an issue that maybe someone here has
> investigated:
> Is there a speed penalty if the USB disk is attached not directly to
> my WinXP computer USB connector but instead to a powered USB2 hub
> attached to one of the USB2 posrt on the PC?
> I have too many gadgets now and I want to clan up my desk by using a
> 7-way (D-Link) USB2 hub to handle all of my guests (only one running
> at a time though).
>
> I realized that this introduces one extra layer of USB and maybe this
> will slow down the guest?
>
> Anyone with info on this?
>
> --
>
> Bo Berglund (Sweden)

Re: Virtual machine VHD file on USB2

Sent: 08/17/2009
From: Bo Berglund <(email address - cut out)>
Message:

On Mon, 17 Aug 2009 08:57:40 -0600, "Colin Barnhorst"
<(email address - cut out)> wrote:

Thanks, then I won't worry anymore.
On the laptop I connect directly to a port, but when running on my
desktop I need to arrange extra ports so I can have several disks
attached at the same time physically located on my side desk.

--

Bo Berglund (Sweden)

Show quoted text

>"Bo Berglund" <(email address - cut out)> wrote in message
>news:(email address - cut out)...
>>I have been storing my VHD and VMC files on USB2 connected hard drives
>> (2.5" such as WD Passport). According to discussions here this should
>> actually speed up performance and it makes the guests portable too.
>>
>> But now I have stumbled across an issue that maybe someone here has
>> investigated:
>> Is there a speed penalty if the USB disk is attached not directly to
>> my WinXP computer USB connector but instead to a powered USB2 hub
>> attached to one of the USB2 posrt on the PC?
>> I have too many gadgets now and I want to clan up my desk by using a
>> 7-way (D-Link) USB2 hub to handle all of my guests (only one running
>> at a time though).
>>
>> I realized that this introduces one extra layer of USB and maybe this
>> will slow down the guest?
>>
>> Anyone with info on this?
>>
>> --
>>
>> Bo Berglund (Sweden)
>
>I use hubs on a couple of computers and have no issues using virtual
>machines on drives attached that way. It is a very convenient way to use
>vms on laptops.

Post Reply | This is Spam! | Mark as Spam

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